So I see lots of people mentioning stacking programs that are considered major/core programs. After crawling the shop and forums, I figured you choose 1 core program, and stack it with stacking modules (and superchargers in the morning and/or night). But I also found a reference stating that you can stack core programs, but never more than three. And how some programs work well together when stacked while other combinations don’t. I’m getting a bit confused here.
I get that the more you stack the longer it may take to see results, but I’d still appreciate a clear answer, if only because it’s so hard to choose between them.