I can see your idea, though I'm not sure a quick release style chaintug would work. Although I think I can see how it could be made possible. Hopefully I've explained it well enough!

With a standard 'nutted' chaintug (A), distance 'x' is infinitely adjustable as the the brace ('1') moves fore/aft along the threaded rod ('2'), distance 'y'.

With a 'QR' chaintug (B), distance 'x' when tensioned is fixed. The only slight movement here would be when the QR lever is in the open position. For it to work, I guess '2' would have to be threaded through the centre of the QR lever '3'. In doing so, the lever itself would need a cut-out for the threaded rod to pass through when you open up the lever. [![Does this make sense?!][1]][1]


  [1]: https://i.sstatic.net/YJoFw.jpg

So I guess in theory this, or something similar, should be feasible. Whether or not it would be worth the effort I don't know! I use the same tyres (Panaracer RiBMo's) all year on my fixie without chaintugs so I don't have to worry about changing wheels/tyres etc!

Anyway, what's your thoughts guys!?