dredknot.... sorry to hear about your plane but congrats on the new one coming!
I too have the 28%edge v2 with a toc53.... my toc has been a great engine as well but i did have a minor problem this past season with it. My toc just quit on me too but luckily I was lined up and coming in for a landing already anyway.... the toc quit about 50 feet from the runway! Perfect timing! Anyway.... I tried to start it back up.... no go! turned out the the ignition modual crapped out on me (running on a 4 cell nimh) Sooo.... bought a new ignition from Tom and it's been just fine ever since. I heard there were some issues with the first modual running on bigger 6v packs etc.... so I'm not sure why my ignition quit???? oh well... just one of those things you can't explain I guess. All this being said.... I'd look at the ignition first.
Good Luck with that new edge you lucky *&^%$^&&!!