depends, for the price of 1 amp you can normally get 6 IP's...so that gives you 3 days on compared to 1/2(since inj. EOD works pretty much as well as tabs ED). I would say if you have the money, and the willingness to do ED/EOD shots then go for zambons or something. If you would rather stick with the more affordable orals, you will still see some solid gains out of it. Its up to you.