I've owned both. Did not like the Deluxe stock. Sent to JF to remove a lot of the gain and clean it up. The Blackface is thinner, spankier, and much less saturated. I greatly preferred the modded deluxe to the BF but ended up with Egnater BMAN and VX dualies.
warmth and clarity mod from any modder will turn your deluxe into an awesome sound blackface, but with alot of body and fullness, and not a need to crank the mids on the blackface. Stock deluxe however, is terrible, i own 2 blackface and 2 deluxe's, and they were all different sounding (year models) but the latest models really are actually decent sounding stock.