The true advantage of waxy maize is the high molecular weight, which shuttles it straight into your large intenstine. Basically, you want (as others said) 75%+ waxy maize when you are consuming it.
Other than taste and just sheer quality, pepto pro is advantageous because it has the same effects on your body as other proteins in lower quantities...most people can have 10-15 grams of it per workout and be fine if they follow it up with another protein source.
Both are VERY easy to digest. So what you get when you stack them, basically, is an easily-digested super-fast-absorbing shake that fuels your workout and refuels your body, kick-starting recovery.
Here is what I got:
75% waxy maize
15% peptopro
10% BCAAs
I honestly think you made a mistake getting 60% waxy maize, because even though it will still absorb fast, you're negating the main advantage of it. Also there's no advantage to using "hydro" along with pepto.
Next time just order your waxy maize and pepto and leucine and whey seperately, in seperate tubs...then you can mix them yourself and experiment.
I personally just have 2 scoops of the blend I mentioned and follow it up a bit later with a scoop of whey isolate ion-exchange for extra protein.