Definitely do not stack them together. You will crush your estrogen. Do run the reboot first as the Form can covert to an active steroid in very small ammounts. Just better to be on the safe side when in PCT. Besides Reboot has a pretty solid profile for It's purpose.

A serm is still recommended on this side, as its always the best route, but I Wouldn't say that it is totally necessary for your run.

As for the Formastanzol vs Formasurge; I'd go with Formasurge. It's made by a more reputable company. Not many of us trust need2, and Mr.Supps in a close associate. Plus the added resveratrol is nice.