I will put 3-4 racks of $5s in play before I break into the $25s and $100s.We use 20/21/3 (1/5/25) for 100bb stack in 1/2. Will just add 5s or 25s for those wanting deeper stacks. Will try to get 2 racks of fives in play rather quickly, but don't mind if we get some 25s in there first. My players are actually more often than not even getting the hundreds in play sooner rather than later as well. Well before I get 2 racks of 25s in play.