your completely fine to start with the triple stack... one step at a time... add sr on the next run... definitely keep us updated on your results and let me know if you have any other questions along the way...
Yeah I'm planning on taking the triple stack which includes GW,S4 and MK, just might have to hold off on the SR for now, however I will run it when i'm further into my cutting cycle.
There's nothing wrong with that plan at all. The triple stack will treat you really well. It's tried and true, and then if you choose to add SR9009 towards the later half of the cycle it will give you a nice boost to keep things progressing even further