Looking forward to the build thread Peter !!
Can't you just post a link to the flicker video... I'm not sure the board is set up to allow embedded videos
Regarding the MTM idea, I imagine it wold be able to play a fair bit lower than the Wedgies so the need for a sub to play up to around 200hz would be avoided.
Ideally, servo subs would be great match, but if the MTM can extend down to reach a c/o point of around 120hz, at least a person could get by with a convential sub until he/she upgraed to servo subs.
jay