ok my friend has a 5150 half stack (orange cab with vintage 30's) and a triple rectifier half stack (orange cab with eminence red white and blues) and to run both hes gonna need an a/b box (whirlwind for example) now if he wanted a boss ns-2 in the loop would it send from the mesa, pedal, return to 5150? if so ok, if not tell me how to please. but is there a way he could use his overdrive boost in front of the amp (example if it was a single halfstack it would go amp-overdrive-guitar) how would he do that with 2 halfstacks at the same time without having to buy a 2nd od pedal? i used to be knowledgeable of this stuff but not anymore :Smokin: