I found out when trying different guitars that i like a slim neck, My B.C.Rich has a slim neck but didn't realize until after playing for hrs at a time and started getting pain in my hand. The neck is shaped different than my Godin guitars, they are so comfortable. This is something I will really be looking hard at when I buy my next guitar. Yes the manufacturers use different shape necks on their guitars, its finding the one that's right for you. Myself I don't have large hands the Godins have what they call an ergo neck.
I had to design a neck from scratch. Nothing I could buy felt "right" in my hands...
It's good to MEASURE a comfortble neck so you KNOW what you are looking for...

