YMMV, but I am just warning...
Clays, TiteGroup, and N310 are very spiky.
If you need to use an overly fast powder for gamesmanship, I find that Solo 1000 and AA2 are NOT spiky and 231/HP38 is almost always more accurate.
I have had pressure spikes (sudden increase in felt recoil and case ejection) from 1 or 2 rounds out of 10 with weighed charges in .45Auto, 9x19, and .40S&W. I REALLY don't want any pressure spikes in .40 and would prefer to avoid the possibility in 9x19.
Main point is to NOT approach the MAX load with Clays, TiteGroup, or N310 unless you have a critical need that supersedes concerns with pressure spikes.