2 questions: Trigger spring and Hold open issue

[G.T.]

Hi to all, yes, I installed a new extractor spring, and the extractor looked great?... It did display some mag sensitivity, but when I used my test GTHQ upgraded Mec-Gar, it ran flawlessly and locked open ..... I think the issue is probably/ could be, the mainspring, and until that is removed and measured, we are always going to wonder.... I only had the top half to test, .. If there is something wrong with the extractor, I couldn't see it?... Also, the hold open issue could have an effect on the last round ejection as well?... I think the suggestion to swap out frames and see what happens is the best solution attempt yet....best to all, til...lat'r....GT...