Thanks for the comments,
The troubling thing is the battery pack was being tested after every fight with a 1amp load and was always above 7.5v. After the crash we checked the sysem again with a 1amp load and the batteries still read above 7.5v. That's what troubling part to us. So we are wondering if the duo run system with the Jaccio 5.7v regulator can't handle the amp load under certain conditions with what appears to be a well charged battery pack. There is a group of here in Chicago on standbye with are CDI's awaiting some info. The unfortunate pilot was Mickey, and he's usually pretty flawless with his setups.

Doc