^^^^ I understand what you're saying and I am actually gonna use the speed work on squat day as a "warm-up" thingy. I will probably do 3-5 triples.
Regarding Rack Deads: I like them and this is very similar to what Max Strength entailed in Phase 2 or 3. So I am sticking to it and the Good Mornings aren't very heavy at all...they're more like "back-off" sets because I am struggling to increase the weight steadily. So, I expect myself to probably do 3x6 with 135 or 115 or something like that. Thats not enough to provide a training stimulus in itself, but it can add to what is happening.