So your upping volume over they cycle? I didn't catch that before.
What I am currently doing is establishing my 3 set 15, 12, 10 and 8 rep maxes (5 sets for arms and side/rear delts and hamstrings), once established I will deload for a week and then train as follows:
Week 1, Days 1 and 2 - 3 x 10 reps @ load of upcoming 15rm attempt (66% volume)
Week 1, Days 3 and 4 - 3 x 12 reps @ load of upcoming 15rm attempt (80% volume)
Week 1, Days 5 and 6 - 3 x 15 reps @ new 15rm attempt
Week 2, Days 1 and 2 - 3 x 8 reps @ load of upcoming 12rm attempt (66% volume)
Week 2, Days 3 and 4 - 3 x 10 reps @ load of upcoming 12rm attempt (83% volume)
Week 2, Days 5 and 6 - 3 x 12 reps @ new 12rm attempt
Week 3, Days 1 and 2 - 3 x 6 reps @ load of upcoming 10rm attempt (60% volume)
Week 3, Days 3 and 4 - 3 x 8 reps @ load of upcoming 10rm attempt (80% volume)
Week 3, Days 5 and 6 - 3 x 10 reps @ new 10rm attempt
Week 4, Days 1 and 2 - 3 x 5 reps @ load of upcoming 8rm attempt (62.5% volume)
Week 4, Days 3 and 4 - 3 x 6 reps @ load of upcoming 8rm attempt (75% volume)
Week 4, Days 5 and 6 - 3 x 8 reps @ new 8rm attempt
Deload then increase load only when target reps achieved on all sets