This may deserve a new thread, but I will post it here also. We recently added an additional stabilizer to our formula that will help with this also. With the new stabilizer blend you should be able to put 16 oz (2 cups) in an 1100 watt microwave and heat it for aprox. 3 - 4 min (depends on your specific microwave), without stirring and it come out fine. I can't guarantee this, but on the microwave I was testing on we were able to do this at 100% power, no extra stabilizer, no problems at all. You may have to tweak your power settings some, but for most I think it will work no problem.
On reheats of this size I would consider adding some stabilizer, you'll have to experiment a little with your microwave.
The additional stabilizer was actually added to help with humidity in the Summer, this was an unexpected, but pleasant surprise.
Jason