if you wire too many add ons it will melt part of the circuit board. i use high amp draw motors, and i got fed up soldering wires on to it. then the next weakest part would melt. you w,d be better off with with ninco,s double input power base, then you could half the wireing to each input and use the 2 transformers youve got. or the cheaper better option, is to buy a modern cheap switching regulated power unit and hardwire your track. pm me if you go for the second option. i can help. john