stratamania said:
The width of the neck is determined by the neck pocket of the body which is a standard measurement whichever profile you go for. The width at the nut end is determined by the choice you make. An Ibanez Jem neck has a 1 11/16 neck width but the Warmoth wizard profile can be ordered in 1 5/8 for example. By the time the taper gets to the body end there is not any appreciable difference.
The he Ibanez Jem profile is very similar to an Ibanez RG as I had both to compare. No idea how they compare to the wizard neck as I don't have one to make a direct comparison. But certainly the wizard will be the closest profile to the Ibanez. They don't feel particularly wide, just flat.
Standard strat is 2.18"(55.6mm or so) last fret, JEM Prestige neck is 2.28" or so(58mm) last fret, close to a les paul I guess. The difference is close to 1.5 times the difference between a 1 11/16 and 1 5/8 nut, but in the last fret. Very little difference I agree, hard to tell. Looked it up here: http://ibanez.wikia.com/wiki/List_of_neck_types
I don't know if this makes a difference in playability(haven't played them), many other more important factors in play.
