I was trying to make a list from what I've found on schmups.system11 and here is the result but please be aware that I didn't try it myself so it's possibly better to check, share feedbacks and then ameliorate this list:
With Slowpoke Mame:
In general: 63%
Futari: around 62-66%
Futari BL: unplayable
Deathsmiles: 63% (equal to the 360 port, apparently)
ESPgaluda 2 needs more slowdowns, and IBARA/PINKSWEETS/MMP work "fine".
With the driver cv1k.c:
Mushi Futari BL: 59%
DDP DFK: 50%
DS / DS MBL: 63%
P.S.:Can you guys post a compiled version of GM v152(ex1 or not) with the cv1k.c driver and 32bits if it's what you're using, I'm interested.
