enough.

I've wasted too much time and funds on adapting SA-mount lenses, so I cashed it in (Sigma 70-300, MC-21, USB dock) & will pick up a Lumix-S 70-300. 

What changes?

+  Weather seals, silent focusing, 0.5x closeups with no zoom/click clunkiness, a focus limiter and bonus OIS for Dual-IS stability. 

 -  More grams and cubic inches.. but no other lens fills the gap except truly bulky and spendy ones.

 That part is Stupid! But ..

when a smaller 50-200ish f/5ish zoom is available, I can dump this thing if it feels like the best move for me. The S9 practically demands that such a lens be made by someone, regardless of my thoughts.