Have used TiteGroup for many years. Tried different powders and have gone back to TiteGroup for 9mm. Using a good light I have no problem seeing how much powder is in the case. Plus I use a powder check. Using a 650 press with the fail safe system it is almost impossible to get a double charge.
You want a dirty powder try REX.
NRA Certified Instructor
NRA Benefactor Life Member
GSSF Life Member
Shooting is merely a byproduct of reloading.