We were a dealer for SAI at Claremont Rocket Society and had a bunch of their stuff. Heavier than Estes BTW. This custom kit and several others didn't make it to the catalogs. We were sent kit samples all of which I have totaly forgot about and they used feedback from bigger clubs like ours to decide what to make.

They didn't last all that long but a bunch longer than Enerjet or Mini-Max. Or Enertek. Probably combined!

Jerry