The sx350j or j board, is pretty bullet proof. I haven't had any problems and if o did they would replace them, I'm sure of that. That's why I am using them. The deal with the mod is that with the board being so huge, it's prolly 3x as thick at least and over 2x as long as a dna, the cavity that I build into the mod is huge and should easily house any other board as well. So if a new better one comes out we can throw it in place of the j board. Another key feature of the jboard, besides it's huge power, which is the max I think you can get from an 18650, is that it's upgradable, so when. New tech comes out they just add it to the firmware and you plug in a micro USB and load it, stupid easy.
