Stack looks really good. As far as lowering the doses an whatnot I cant really comment as when I ran those I ran them all at full dose. But the results on each of them were great and they all work through different pathways so it should play out to be a nice run.
Plus if you aren't feeling it from this doses just up them to normal doses.
Erase I think can be dosed lower than the other two. Some DAA research and users say that after a loading period 1/2 to 3/4 of the max dose is all you need. I have experience running it at half dose and I think its still effective. Just that the standard dose is a bit more effective.
Endosurge I took at full dose and loved it. Great dreams, rest, and strength gains were there a well.