SVI pistols are widely used by "action" pistol shooters (USPSA, IPSC, IDPA, etc.) They have a reputation for excellent construction, and customer service. They are pricey, but you get what you pay for in this case.
I have some SV components in my pistols, and am very happy with them. I shoot, or have shot, with some top shooters who use SV guns, and they seem to be functional and durable. I won a SV slide at a match, and am awaiting delivery; I like SV . . .
and have used Gun Builder to set the parameters, check with Brandon (Sandy's son). He can answer questions and help you make decisions as to which options would best suit your application.
Yep already used the GunBuilder. Haven't talked to anyone there as of yet, but sometime soon after I get back to the states I will be. Of course I already have about a million other guns on my want to get as soon as I get back list.