Don't know if I would do it but I don't see any harm in doing it either. If I don't have a reliable ignition (AKA 209) I wont use BH209.
But on a side note I've been having some good success with Black MZ powder. It's been shooting great on the range and firing 3 shots on game has resulted in two deer and one hog. (one deer and the hog were DRT and the other deer didn't travel very far). Loading is easy and cleaning between shots like 209 is not necessary. But unlike BH209 it ignites reliably with #11 caps.