I used my brown Special with a JCM-900 and two cabs last summer in an outdoor venue with no squealing pigs at all. Thin sound is also a condition I have not experienced with them. I don't know Steve Stewart, but I can't find a single reference to any unpotted 490s in any Gibson reference material. It is hard to imagine a reason to use unpotted pickups. (No, the wax potting does not affect the tone.)

LIVE PERFORMANCE EVALUATION TO FOLLOW:
490's - Great pickup for bedroom playing. AWFUL at high stage volumes. They are unpotted (traditional style build) so they squeal like a pig on a small stage at high volumes. They also get really thin sounding as you increase the volume level...
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My piggies only squeal when I call them.Macho men never use wax! (Just kiddin with you, Mr. Herndon)

I don't have any experience with them at high stage volumes, but according to Gibson 490s are potted. And the 490s I have are definitely potted.
Thanks, Col. and I really didn't buy it "over" the Special, it's just that i git a sweet deal and it just grew on me.
The Special is still in the list but I will probably play it as it comes, I'm not a big fan of modding.
yes, my 490s were also wax potted on the 2007 SG special faded. Those are now on an Epi Les Paul special ll.
That's why I was puzzled by Robert's post. But I never play loud enough to cause microphonics, even outside
at a festival. So there's stage volume, and there's stage volume... *grins
It seems like it's all a question of degree. And Robert, this might be a whole 'nother thread:
"What p'ups to use for really loud band volume, when you have to stand in front of an insane drummer
and a knuckle dragging bass player. When you need to distort your monitor..."
Dirty Fingers, maybe? I know nothing about the GFS ones you mention.
Just tried it with my cherry Special and nada. Why would you ask? (and why on earth would one do that?)pinch your bridge pickup, as if you are trying to pull the 490 out of the pickguard and tell me if it starts buzzing wildly like a shorted-out electrical component...
Colonel....
Indulge me if you will....
With your SG plugged in and volume around 2-3 and gain at 1/2, pinch your bridge pickup, as if you are trying to pull the 490 out of the pickguard and tell me if it starts buzzing wildly like a shorted-out electrical component....
Just tried it with my cherry Special and nada. Why would you ask? (and why on earth would one do that?)
I've never had that happen... but I've never grabbed a pickup like that either. I'd be afraid I'd break the insulation
on that thin thin winding wire. I've installed covers on my humbucking p'ups and swapped the uncovered 490s
into my step daughter's Epi Les Paul. They sounded fine to me in that guitar, although the 490T still sounds a bit weaker
than the neck pup. I replaced the magnet in the 490T, installing an A5 and got a little more sizzle. But I really prefer
the '57 Classic plus.
Anyway, I sympathize with your frustration. I never seem to have much trouble at home, only when the lights come on
and everyone's looking at me. It's a bitch when a new guitar lets you down. I did some reading about wax potting vs
'unwaxed," and it seems true that some players believe the unwaxed pickups sound better. Some traditionalists would buy
a guitar with unwaxed pickups over a waxed one, so apparently Gibson thought they were doing you a favor.
I've never had that happen... but I've never grabbed a pickup like that either. I'd be afraid I'd break the insulation
on that thin thin winding wire. I've installed covers on my humbucking p'ups and swapped the uncovered 490s
into my step daughter's Epi Les Paul. They sounded fine to me in that guitar, although the 490T still sounds a bit weaker
than the neck pup. I replaced the magnet in the 490T, installing an A5 and got a little more sizzle. But I really prefer
the '57 Classic plus.
Anyway, I sympathize with your frustration. I never seem to have much trouble at home, only when the lights come on
and everyone's looking at me. It's a bitch when a new guitar lets you down. I did some reading about wax potting vs
'unwaxed," and it seems true that some players believe the unwaxed pickups sound better. Some traditionalists would buy
a guitar with unwaxed pickups over a waxed one, so apparently Gibson thought they were doing you a favor.
I've never had that happen... but I've never grabbed a pickup like that either. I'd be afraid I'd break the insulation
on that thin thin winding wire. I've installed covers on my humbucking p'ups and swapped the uncovered 490s
into my step daughter's Epi Les Paul. They sounded fine to me in that guitar, although the 490T still sounds a bit weaker
than the neck pup. I replaced the magnet in the 490T, installing an A5 and got a little more sizzle. But I really prefer
the '57 Classic plus.
Anyway, I sympathize with your frustration. I never seem to have much trouble at home, only when the lights come on
and everyone's looking at me. It's a bitch when a new guitar lets you down. I did some reading about wax potting vs
'unwaxed," and it seems true that some players believe the unwaxed pickups sound better. Some traditionalists would buy
a guitar with unwaxed pickups over a waxed one, so apparently Gibson thought they were doing you a favor.
Get the free install on a new set and get back to us. You seem to have serious shorting-out going on.
Nothin' like getting a sweet deal on a '61... that makes it even more sweet. *grins
And I got my 490s dialed in by lowering the neck p'up so it was down inside the body just a little. I thought it sounded
good down there. I kept the bridge pickup about 4mm from the strings, like Black was describing. And I played a lot in
the middle position, with the neck p'up on 8 and the bridge p'up on 11. Step on the Blues Driver to boost it.
But I'm a fan of the '57s and I believe that's what comes in your '61, so you'll have to tell us all about that
when you get your new guitar.