For my PP/PM comment I like Greg Everett's comment
. To me the PM mass template has the word mass in it and a hypertrophy cycle to boot. It's not entirely strength. You'd be better off just going straight for strength. Size doesn't mean strength.
Start low but not too low. Go hard, go heavy. Eat well and sleep. Don't think you're going stall to on SS 3 weeks into it. If you do check your intake and recovery and tough up. I'm working with a 104kg5x3 back squat right now. I started 102kg on Monday. I keep chipping away at it a little bit at a time. It works. Really well actually. Not having a 20lbs increase per week is not stalling.