You've said that you are doing some Kendra and Ava scenes update. Which Ava and how far & what particularly are you doing?
I started some Ava kittystyle scene modifications, through for 0.672 as I really want 0.671 out before I have this done.
I want to improve Ava's crotch drawing (already done), add 1 wait frame in speed 4 deepest point (so the rendered frame is clearly seen), fix left part of vag misalignment, add second climax option with d*ck inside and cum splashing out.
I want to avoid situation where each of us is modifying different branch which could be hard to combine into one file.
Regarding the sound in official unfinished doggystyle update, I've inspected that deeper and I can likely reuse part of that. Fortunately that awful sqeaking dildo sound can be removed. Also I can't say that I like that "oh GOD!" climax.
FFDec does not support SoundStreamBlock SWF tags, but I should be able to control sound using script. The problem is that sound volume is a bit broken in Flash. It works somehow in the Trong version of Flash Projector, any sound volume change changes all game sound volumes in Adobe version of Flash Projector. Hierarchical volume control works in neither.