I fired the type 3 into the stock 2 with Titan hammer and one pice sear. Pre-travel dropped by 50%. You do not need to reduce the face of the "wing". Just remove about 0.01 from to bottom, to thin the wing. Also break the sharp lower edge of the wing face.
I also installed same disco into Stock 3 with OEM sear - same improvement
in all honesty, the 13lb hammer spring, new disco, extended firing pin and polished internals make the hammer unneccessary.
Will try an even lighter hammer spring to get the Titan to do its job.