What I _do_ know is that I must plan my deload or it will not occur. I am one of those guys really good at digging deeper holes with more work when already in the hole.
I really like the "Strength by feel" approach with 90-95% vs 100% every second week and incrementally working towards lower RepMaxes in WeekPairs. It's like sub-tapering for a max every second week. The volume however is crazy in it
I need to experiment some more I believe.