Thanks for the tag.
With low volume training to failure, I would be doing my best to juice those working sets to the gills. 1-2 warmup sets is typical (I do roughly 5x50% WW, 3x75% WW), and I also use a backdown set at whichever warmup weight I think would feel best.
If you enjoyed this a lot, you might want to consider using JP’s stuff for a mass phase.
He has some videos that are loaded with important information, if that kind of thing piques your interest. I posted them here: