Buckmark trigger spring

Just wondering if any Buck Mark owners here either did the ‘heggis flip’ mod or are using the Tandemkross gear box and what your feedback is?

Mate did the spring flip, i don’t think it made it any better. It did make it empty magazines faster when installed wrong.

I have heard good things about the gearbox but no personal experience.

Yeah, I couldn’t find anything bad about it either, but then watched some video and this dude measured pull weight before and after; and it went up. Kind of weird.