I don't know if anyone out there has had a chance to try all four of these, but I am trying to decide between using either MRI's NO2 Black and CE2 Hi-Def or Gaspari's Size On and Superpump 250. I'm looking for a good muscle volumizing/pump effect for a trip I've got coming up in a few days. Not that I expect huge results in a few days, I will continue to use and work out while on vacation.
The thing is, I tried incorportating all four into my regimen, using the Superpump only on weight-training days and at a lower dose. That may not have been the wisest thing, even though I had some great pumps and strength, I wound up feeling pretty crappy afterwards, almost flu-like symptoms. I am guessing everything combined was just too much for my body. I tend to prefer powders over pills, but whatever one anybody has learned to work better, I will try. I'm not sure but I may be sensitive to the Superpump 250 also, I used to use NO-Explode a lot and I think my body isn't too big on stiumulants anymore (or it could just be the combo of these products). Anyway, this would be for a short while and at a more moderate dose.
The NO2 Black seems to have gotten a lot of good reviews. I didn't think the serving of creatine in the CE2 was that much, but I guess you don't need a lot for the kind of ingredient it is. Please let me know your thoughts if you have had experience with theses products.