I got mine on Monday and shot some today. I wasn't trying for group size but on my FX chrony they shot just a little slower than the FX 10.3 gr I usually use.
15 shots each from my Daystate Griffin (unregulated):
Benji:
average 876 fps
ext. spread 14 fps
std. dev 3.8 fps
FX 10.3:
average 909 fps
extreme spread 12 fps
std. dev. 3.2 fps
both were pulled straight from the tin, no weighing, sorting, rolling sizing etc.
It's a bit breezy here in Indiana so I wasn't trying for any particular group but at 25 meters, with groups seemed comparable. Further experimentation will be in the future.