This. The 400 is so good that I don't even use 3500 or 3800 anymore.I use the 400 and 3800, bust stuff I've used to date.
Very true Dan, the 400 buffs up so good you almost don't need the second step.
Might as well add SONAX Ultimate Cut to the list, their newest compound. Faster cut, longer working time and easier to clean up.This week I experimented with sonax cut max on a wool pad. Dewalt rotary. About 1800 rpm. About a drop every square 8 inches or so. Followed by the same process with a white foam pad. (Don't know if it was even needed). Wax n grease remover. Detail spray. Then menzerna 3800 on black foam pad. . .im sold. Done deal. This stuff is like crack in a bottle. I just ordered a small bottle of the 3d 500 referred by texasking. To play with next.