Can't comment on the Springer because I don't have any experience with their guns. I can say with confidence that you would be pleased with the Trojan. Great gun and at around $1100 it's reasonably priced. My son has the 6" version and its scary accurate. I own a number of other STI pistols and have been very happy.
+1 to qwiksdraw's comments about Texas made and unmatched customer service. Great company, great people, great products.
“Once you have had a wonderful dog, a life without one, is a life diminished.” - Dean Koontz
STI Eagle (2), STI Trojan (2), STI Edge, STI Guardian, STI Sentinel, STI VIP, STI Ranger, STI Tactical 4.0, STI Rogue, STI Escort, 1943 Remington Rand 1911A1