KNSB Motors

I use Potassium Nitrate/Sorbitol propellant as my main sugar fuel now, because of the many reasons listed on the front KNSB page, in LOKI motor hardware. It cleans easy and doesn't need additional parts (phenolic nozzles or the need to make pvc cases and nozzles every time) making it very appealing to me. I use a standard 65/35 formula and cast my grains as stated below:

Grain Diameter: 1.2"
Grain Length: 2.125"
Core Diameter: 0.375"
Kn Range: 300-400
Average Density: 0.0632 lb/in^3