Good job, but most of that crap you are throwing at the clones is unnecessary and if overused, potentially harmful. Were I you, I'd try a side by side without all that stuff. Likely you can have success without the expense of the unnecessaries. All I've ever used is Schultz Rooting Hormone, and it has never failed me. 4-6 days isn't abnormal at all. Especially if enviornmental factors have been optimized. (temps, humidity, soil moisture control, air circulation...)

Peat-based grows require a ph between 6.3 and 6.8ish. (peat pucks included) Right now all they need is the moisture in the soil. This is a good thing for you, as the lower ph will eventually lock-out the uptake of nutrients. The idea is to grow roots, not the foliage. And why are you using a flowering nutrient to promote roots? Chemical oxygen isn't a benefit. Actually, thinking it over, I'm kinda surprised you've had such success.

Just a little about Superthrive:
Vitamin suppliments and Superthrive
More helpful insight:
Horticultural Myths