I think it was FF who mixed his own up a while ago? I was going to do the same and bought the Beta-alanine, caffeine etc then realised the initial cost was more than i expected even if it did work out cheaper in the long run so gave upStill got most of that left..
That's the kicker, isn't it? It's a lot more convenient for people to buy a ready-mixed powder and pay X% more.
I just dose with caffeine, instant oats, milk and creatine and turn up the METAAAAAAAAAAL on the headphones...
Although it was Queen's Greatest Hits II, today. Might explain a few things...