Please allow me to join the discussion.
I have a Convoy L6 host, an extension from Convoy L2 and a stock driver bought at BG (claimed to be 2s) and a mess in my mind.
I’m also planning to build a 3x26650 flashlight but don’t know if I should get a driver from KD (3s)? Or the one from BG would handle up to 13V voltage? I’m also planing to increase the power with a R120 resistor mod, but not sure if combining it with 13V is a good idea…

Any experience that you have?