Stock, with minor tweaks that all worked as of Wine 2.4.
Didn't get to play much of anything during the last month or so, first the loss of a hard drive, then work getting in the way. Other than starting it up and playing a few "single missions", which worked, I didn't play much with WINE 2.5/2.6.
I'm going to try a fresh prefix, see if maybe the upgrade "broke" the SH4 installation of dx9 in the prefixes (have it installed in a 64bit with LAA for large mods, and in a 32bit for playing/tweaking).
And try find the AMDGPU driver config file... and see if Vsync is on.
Although it never had tearing issues before.
Barracuda