During my cuts I usually start the first week of the cut without albut, then I'll run albut solo adding 1 mg of keto ed every other week. so it wouldn't be until week 3 of the cut that I run keto then I stop at the start of week 4 and resume on week 5 and so on. This may not be the absolute most effective way of preventing down regulation but it has seemed to be rather effective in preventing down regulation ( at least from as far as I can tell given the consistent level of sides I receive from albut) and the most cost effective ( I know keto is rather cheap but so am I haha, and so ya know being cheap wasn't my goal when deciding dosages).