Luke,
Your idea sounds do able. If feet colliding was an issue, how are OOP (out of phase) set-ups possible?
Clarion, that's an inspiring quote.
My fixie has been living in the house and giving Maffie ideas about trying fixed so you never know, one day we might give fixed tandeming a go!
I'm bloody impressed with our tandeming ability. We seem much faster together on the tandem then we are together on our Solo bikes. And it's lots of fun. If a tandem is twice the fun of a solo, fixed is twice the fun of a freewheel... fixed tandeming must be 4 x the fun of normal cycling!