How long have you been using this method? How many times have you deloaded before? Seven weeks is a pretty good run mate!

If this is your first time needing to back off, you could probably just do an easy week or two across the board, then roll back two weeks and run at it again. Perhaps change the parameters slightly, say from doing heavy 5's to doing heavy 3's or a few singles on Thursday, and maybe alternating 5x5 and 8x3 somehow on Sunday.

If you've had to deload a couple of times already, starting to add some power stuff on Thursday sounds like a good idea. Or maybe alternate power and intensity days on Thursday? I don't have all that much experience with dynamic stuff, so someone else can probably advise you on how to begin including it better than I can.

Let us know what you decide!

Cheers,
Jeff