I already have a Geissele in a small-pin platform, I'm considering upgrading a large-pin lower.

(kicking myself for not doing this two weeks ago) a lot of high-end/high-quality stuff is sold out and/or backordered.  My first choice is Geissele, but those are tough to acquire right now.  I'm interested in comments (from experience) on Jard, Timney, etc. on large pin TG's.  Semi auto only (NOT select fire) ideally something in the 3# and under range.  I'm not yet doing 3-gun stuff, although that's a possibility.  

Thanks guys :)