brs sounds better than i'd imagined. wing installation on a DVII would get it near the "pre" and likely "post" catastrophe CG. I suppose that if you had a circumstance in which you could use it, the issue of the direction of sudden deceleration while sitting in a "prickly" cockpit is moot.
What is the minimum altitude from which these can be effective? Is it higher than the altitude from which you'll be doing all those fly-bys?
I keep forgetting the formation flying which seems another likely hazard to which less interesting planes are not exposed. I suppose that the issue of getting down in one piece from an "event" has as much to do with the operating environment as it does to the potential twitchiness of these planes.
I continue to vote for flying out of a really big field where you can land straight ahead from any altitude that won't allow a turn. maybe there aren't very many up your way, but there are a few in Florida, mostly old training fields.