Hey guys thanks for the reply's I picked the TA90 up Saturday and haven't had the chance to get out with it yet. The Gun is far cleaner on the inside then out. I thought for a moment the slide had been swapped out but all numbers still match. The Rear sight, aftermarket I've been told, was bent down so the hammer would hit a bit soft so I need to take and press the hammer down just a noticeable amount with my thumb. Of course like any of my new toys the first thing I do is take it apart, loose pieces or break something or have a hell of a time getting it back together. What should make this any different.
After taking the slide from the frame (Snap), I saw that the frame rails show very little wear, the hammer and sear look well polished. The place in the frame where the guide rod sits doesn't have any of the mushrooming that I saw on other threads as a "what to look out for".
Grips off everything clean reassemble and work the slide. I did it no worries. So then I see two little set screws holding the rear sight into the dove tail so a drop of KROIL on each and either side of the sight and wait patiently for about 10 seconds before I try to back out the screw. BINGO they both come out with little effort. Now I remover the slide again, set it on my bench (currently set up for reloading and NOT Smithing) I proceed to strike the sight with hammer and punch from right to left. No good. I then go left to right, no good, a bit harder, no good, a bit harder and still nada. OK a trip up to the PC and a few forum post later saying leave it alone its a PITA to remove I say fine. The sight is large enough that I can just file away what is interfering with the hammer. SO I grab the file and before I set to shaving it down I think hell this is gonna shoot very high maybe they did this on purpose because they were shooting at greater distances. What the hell I turn it over and tap I mean tap it from the under side and a few choice words later I'm looking for the broken piece. WTH. so time for a Better rear sight, search on line produces some but I'm cheap so the looking turns to used, which I'll be posting on boards soon for. Until then I decided to remove the rest of the rear sight and well what do you know about two taps latter it budged and then light taps the rest of the way, again WTH. Now two pieces in hand and still impatient I grab my torch and some brazing rod and well "FIX" it. (I say impatient b/c my tips at home are larger then some I have at work and well its not easy brazing small stuff with a big tip). I say its fixed and I'm OK with it I will shoot it AS-IS until I get a new or used one. Heck If I don;t like it I'll just pass it on. BUT I think I'm gonna like it. The trigger is firm but smooth in Double action and the single action has little take up or creep and very little movement I think to reset (hard to tell) One thing is for sure I think the recoil spring might be heavy as working the slide back is VERY hard and takes a bunch of effort, a bit less without a mag. I looked over where it might benefit from some polishing and I think its the spring. I mean with out it it cycles manually without or resistance. Again reading about spring rates and stuff I'm going to shoot her for a while before I make any changes.
So as soon as the weather breaks and I can get outside to snap some of my own pics I'll update. Also I may have opportunity to get out this week and put a few hundred rounds down range to see how she feels.