.300 blk SBR Suppressed buffer weight

Anyone have any recommendations on a buffer weight for the above mentioned choice? 8.5" barrel. Ive ready the Spikes ST-T2 is a pretty popular option and cycles subs and supers just fine. Anyone have any personal experience with different buffers?

Thanks!

I am using a standard carbine buffer. Runs 100% on semi and full.

Dave will this rifle be suppressed? :D

Yeah, I mentioned that in the title. :)