Seized BB drive side cup

[Lewis Moon]

Welp... I'm breaking down the Masi GC in order to update the components and the drive side fixed, square taper cup won't budge. I'm thinking it MAY be Loc Tite, given that the NDS cup was hard to remove, had no rust and basically turned like it had glue in the threads. I shot in some PB blaster, but am unsure how that might work with Loc Tite. The real rub is the narrow flats on the cup can't stand more than a couple wrench slips before they become unusable. I ordered the proper tool, but I want to stack the deck before I go at it again. Any tips?