I have the SC version of the NX750. I keep mine in the forward, left compartment. I have a couple of rods over 7' and there is room for longer ones. They used to get hung up on the TM wires that laid on the floor way up front. I hung those wires using zip ties with the ring to secure them. I have since moved my TM batteries to the front, middle compartment so it is no longer a factor. Get a good look at what is blocking the rods from going in properly.
RH