A power lifting routine i have always followed is 10,8,6,5,4,3,2,Max Effort then burnout of max cut in half and/or heavy negatives. So if my max was 300 on bench id drop to 150 do as many reps as possible and/or drop to like 225 or 250 and do 3-5 negatives. This was my routine about 6-8 weeks before football season started so I could be at optimal strength for the start of the season.