I always thaw a pack of rmb's, a container of organ, and tripe and some mm in balance...so it all goes at the same time. Now and then I'm low on one or the other. I try to stay at least one or two meals ahead in the thawing(especially when it is so freaking cold out!)
One thing I got from the last MPC order was lamb hearts, they are really nice for the price, I chunked them up into ziplocks(2 hearts per bag) and refroze them. Those will be a regular on my monthly order!