If I use front brake in a skid I normally (always) fall off.
You will have 2 different chain lengths, which, all things being equal, will mean one side will wear / stretch faster than the other. So if you do manage to get the rear wheel straight in the dropouts after a couple of months I would imagine you will struggle to. Perhaps the effects of this won't be noticeable.
I can't get my head around why having different ratio forwards to backwards won't work, seems possible but perhaps not practical. I do wonder if it's possible that the pawls in your freehubs could lock to oppose each other and not allow the cranks to be moved in either direction. I'm not too sure. {edit - this is bollocks}
Try it! Tell us what happens!
Once the wheel is locked the gear ratio is irrelevant. Have you tried leaning further forwards?
If I use front brake in a skid I normally (always) fall off.
You will have 2 different chain lengths, which, all things being equal, will mean one side will wear / stretch faster than the other. So if you do manage to get the rear wheel straight in the dropouts after a couple of months I would imagine you will struggle to. Perhaps the effects of this won't be noticeable.
I can't get my head around why having different ratio forwards to backwards won't work, seems possible but perhaps not practical. I do wonder if it's possible that the pawls in your freehubs could lock to oppose each other and not allow the cranks to be moved in either direction. I'm not too sure. {edit - this is bollocks}
Try it! Tell us what happens!
Once the wheel is locked the gear ratio is irrelevant. Have you tried leaning further forwards?