Silencers, Moderators, Suppressors, call em what you will but

What is everybody else using?

I have just discovered an absolute little "Gem" in the form of the "A-Tech Wave"
I would say, boldly, it is on par with the mighty Weihrauch which has (to me anyway) always been the bench-mark standard.

But my question, out of pure curiosity really, what is everyone else using and what are the thoughts/opinions from you learned gentlemen?

Opinions please, the good, the bad and the ugly warts and all

PoP