The Real Science of Airgun Suppressor Selection

So I Guess the huben K1 and the new Taipan Slash could also be good test subjects no?

Anyway, I have a ryu in my GK1 .22 and it does a good job at medium power levels. And is looks and feels great. One of the 3 donnyfl moderators I have.
The ryu in .177/.22 is a favorite of mine <20 fpe
 
Talking about real science, a modular silencer with chambers of varying lengths, which can be assembled based on your airgun :)