When purchased some 6 months and 500 rounds ago my T-100 had a very stiff safety in both directions. Cleaning, oil, repeatedly working it made no difference. It was simply impossible to manipulate the safety with a normal grip. There was a thread long ago here about the same subject and I believe it was Brian who said removing 1/2 coil from the spring that keeps pressure on the wee BB that provides the detention. I waited for the procedure to do this...for awhile...today I took a breath and did it. I ended up taking a full coil off due to ham handing. For me it was a two person job to reassemble job. After fully seating everything without the BB, I backed pin out just enough to fit BB and manipulated to its seat. Works fine, plenty of detention feel...similar to what we would expect.
My uneducated guess would be this stiff safety might apply across more models
One observation on the sear group etc...mine was very well finished with no machine marks to the naked eye in good light. So much so I felt there would be an inconsequential improvement if worked on. Nice.
I had to adjust rear sight due to not noticing it was clearly not centered with ribbing. It shot several inches left and low at only 10 yards. A minute with a drift and hammer brought it centered both on ribs and, more importantly, on the target. Now the front sight??? I have not heard of a no machining fix. Any suggestions?
Oh, allow plenty of time for the safety fix, avoid coffee, do it in good light and remember to breath.