Re: A new shift concept for the engineers....
If a 410 chain had a cleverly designed derailleur it could work. Well maybe? Me thinks only two gears at best. Problem being will be folks not paying attention to a proper way to shift it.
As a kid I would take a BMX chain and make it work with a front derailleur by widening it to make it fit as well as a back derailleur for a said now needed tensioner [only]. Now I am not talking about a rear set of cogs spacing will never work.
It would be nearly impossible to see folks not tear it up on a motor as shifting will have to be done at a lower speed than the given load. I do think it can be done in that respect.
As for the teeth and the cog sets gently cut out slopes that raise the chain into the bigger gear not bent teeth.
Still gotta have a since of humor.