$110 each? Buy several, fix the ones that are out of sinc, and shoot them all. Pick the one or two you like and sell the rest. If these are the used CAI imports, they are going for upwards of $200 on line.
Some may have the "pencil" barrel, some may have the heavy barrel. Some may have a lanyard ring, also. Those differences and the full or standard under lug do make a small difference in the gun's balance.
I don't know about your prior experience with buying a used gun, so you might want to check this guide from Chuck Hawks. Revolvers are about half way down the page.
Buying a Used Handgun
Go buy them quickly because they won't last long, especially at that price.