I'd like to try and make my own DIY endurance fuel for my 2-4hr workouts. Right now I've used both Hammer perpetuem and Gen UCAN (too expensive).

Looking at using waxy maize for slow GI carbs similar to GenUCAN, and adding BCAA in a 5:1 ratio, similar to Perpetuem.

My question is, what brand of WM to buy? I've heard there can be a lot if variability in the GI between brands. Looking to keep insulin levels low, with the protein to prevent muscle catabolism.

Thanks,
Rob in St Augustine