You know, the funny thing is about Bellm and his springs, he tells you not to mess with that little spring and plunger on the trigger. Instead, lightening the sear spring which can possibly cause disconnect problems if it's too light of a spring. Well that little coil spring in the trigger work's to equalize release pressure. I've found that putting a slightly stiffer spring in there reduces trigger pull also by adding additional pressure to the trigger instead of reducing pressure on the sear. Ofcourse you can only stiffen this spring so much before you limit effective travel, but if you have
the right coil spring stock available it's an alternative that doesn't require removing anything more than the trigger guard and trigger and also reduces the possibility of encountering problems with the safety disconnect engaging properly.
I'm not trying to discourage Bellm's springs here, just offering an alternative.