My sprucing up - self service, includes about 300 dollars in parts from CGW, and about 4 hours of fun work. Or you can send to CGW and get the things done.
Reduced DA reach, much better SA reset, 7 lb DA and 3.5 lb SA ! Here's a pic of the 75 BD
i have done the following upgrades to it:
Reduced power trigger return spring
Reach reduction disconnector compatible with SRS
SRS (13# main spring, extended FP, reduced power FP spring, FP block spring and upgraded FP block lifter arm)
upgraded hammer
fiber front (5.5 mm)
LPA adjustable rear
Plus: optimally polished trigger bar, sear cage, sear, lower part of hammer strut.
and more recently thin aluminum grips (not in pic).
if you intend to carry, nothing better than a P-01 (compact). No question, and you can upgrade the internals similarly.
wealth of info at czfirearms.us - good forum helpful people.