booster

I've seen several threads that doscuss HPR booster separation but haven't seen any actual, workable designs or flights. The electronics to airstart and separate boosters pyrotechnically exist in several altimeters/flight computers so that is the relatively easy part. But the design/fabrication...

Has anyone retro-fitted a booster kit to use electronic deployment? I had a LOC Terrier booster that relied on motor ejection. I had to make the ejection delay quite short (6 sec.) on a CTI I-345 White Thunder. Well, it delayed more like 3 seconds and performed a rather spectacular yard-sale...