Yeah, here in town has some of the top gunsmiths in the country. Robar is on 7th ave just south of deer valley. Thier guns are featured in magazines all the time. They just had a Ruger LC9 in one of the magazines. They do amazing work but they are pricey. However, they are very good folks and do top notch work.
http://www.robarguns.com/index.htm
Another top gunsmith is Frank Glenn of Accuracy Unlimited. He is one of the top 100 in the Counry according to Handgunner magazine. (I think that was the publication.) Also a very nice guy. He did some work on my buddy's 1911 and I plan on him "deburring mine as well) I may take my wife's 23 in to get grip work done there and I plan on having him fit my G32 barrel when it finally shows up. He has a much faster turn around then Robar and is cheaper.
http://www.glenncustom.com/index.html
As a side note, Scottsdale Gun Club doesn't do the grip mods anymore. The guys that did the work don't work there anymore.
blackwolf, whenever our schedules work out you are welcome to shoot the 20 and the 31. Then you can see what a diffference it makes.