I think it's good that you found something that works for you.
However...you know that the two main ingredients of jack3d are AAKG and creatine monohydrate right? So there's really no variety there.
I like the suggestion for beta alanine, which is also in jack3d, but for higher doses. And citrulline malate actually has more research support a link to muscle pumps than AAKG does.
I would also get some BCAA's in preworkout.