It must be a couple of years since posting on this forum, though after browsing through a few posts it seems there are some having difficulties in either design, performance and/or reliability in relation to KNSU propellants & motor designs.
I really cant stress enough the value in Richard Nakka's site, 'Nakka Rocketry'. It is the most well presented, in depth 'gospel' in relation to all things in the AER literature to be found on the net by far. Ive always had meticulous safety consideration as no 1 priority, but what ive learnt and achieved, and the contacts it opened up still to this day staggers me. I really struggle to believe what I can and have designed and built, on a reliable and consistant basis. And in a reasonably short timeframe. From a womble that slapped together "sandwhich tube oversized bottle rockets" to a very competent air frame and motor designer who ( and im genuinly embarrassed to even type this..... ) for some reason unknown to myself, has in time gained the trust of some of the best worldwide.
Guys, if ur keen check it out. and never give up, they'll CATO sometimes, thats just a given!!! If u dont have some let go your not really pushing the limits, and thats where a SRM is putting out its all - just before it lets go!!!!! Just use common sense, be safe as with your surroundings, otherwise go join a gymnastics club as this isnt for you!!!!!!
PS if you read this Mr Rick M could u please PM me, cant use AER forum at present and need to catch up!!!!