Late mini post but just finished pulling ip the bathroom floor, the sub is rotted in the closest corner to the right of the tub so no clue how I'm going to fix that yet but I will figure it out.
That being said, the GF pulled up the entire bathroom floor... She's a fucken champ and i'm so impressed.
No work tomorrow since the electrical is being finished/inspected and then the plummer is coming in on Thursday and drywall up this weekend.
I ended up going with Roxul insulation, I've heard nothing but good things about it and the price difference is worth it in the long run.