Anything anyone tells you would be speculation. If Louie himself came on this board, he'd probably recommend, but the last word of his advice would be the last word of advice that everyone else is about to give you: try it and see for yourself what happens. Is it in the 8 keys 9 week template? Nope. Does that mean it wont work? Hell no. YOU have to look at YOUR weaknesses and experiment to see what helps em.
I dont know where your weaknesses are, but my honest feeling is that most non-elite lifters could use more work practicing the full lift, and close variations therreof (incline, decline, etc)
So if you want somebody telling you what to do, heres my vote
week 1 decline -5 rm
week 2 decline -beat last weeks max by 10 - if you dont beat it, do a 3 rm max for week three. if you do beat it, go for a 5rm again in week three
what im trying to say is that do what it takes to contiunue working hard and handling heavier weights. push yourself to break rms. then push yourself to handle heavier weight wiht lower rep maxes. when youre done take a week off and test your max. if it went up, declines helped. if it didnt you wasted, what? a month? two months at the outside? thats nothing, this is a marathon not a sprint