Took me 1-2 hours to beat Vergil on SOS difficulty. Didn't expect to beat him tonight, but my cheese strat ended up working pretty great. Once I realized that I could spam Stinger, my whole plan was to burst him down as much as I could before the second phase... and then burst him immediately after it. Really hoping it works on DMD as well, but... I have a feeling I may not be able to do it without red orbs.