I will give a theoretical caution about the two stove under one pot idea. Normally, the burner offers some blocking against radiation from the flames reaching the canister – in some cases more effectively then others.
But with two stoves you have the additional cross-radiation heating up each stove. This could be dangerous. I would NOT do it myself; rather I would use two pots, separated by enough space.
My 2c.
Cheers


