Just out of curiosity, what's the issue with the new RMCs and the 1-Spot? I'm using an older version of the RMC3 with the 1-Spot without any problems whatsoever. I did add a 1N914 to filter the input power, though, because it was humming with another power supply of mine. Did the trick..
Edit: Ok, I just had a read through the RMC site and I think the reason I'm not getting problems with the 1-Spot and the RMC3 is that I'm using the same 1-Spot to power all my pedals. That's 10 other pedals plus 1 tuner. That should make the current to the RMC3 somewhere below the max of 200mA.