Hey! I finally realized I was spelling Geissele WRONG. I'm kinda anal about such things and as such find it somewhat embarrassing...but I've grown a little used to that over the last six and a half decades.
Brownell's has two models of enhanced triggers on sale for ridiculously low prices just now if you consider $129 ridiculously low, like I do. I haven't tried either of these two, but I'm sure taken by the SSA-E. That one has found its way into every lower receiver in my possession save the two house guns which are equipped with the G2S.