In our case (and I’m sure everyone has had different experiences), during the honeymoon phase it was easier to control his BG numbers. They were much more consistent/predictable. If he got a lot of exercise, he needed a snack. Now if we give him extra carbs for exercise, he often has a high BG reading at meals. For us, leaving the honeymoon phase has led to much higher BG numbers (but on the plus side he has had virtually no low blood sugar events!).
We go in for our endo visit next week and I know she wants to take us off of NPH and just move to Humalog at meals using the insulin-carb ratio (and keep lantus of course). So I am preparing for some ups and downs until we figure this new regimen out.