I just ran my first batch on my newly installed RIMS system. It was awesome! I hit 87% efficiency, I will be dialing that back a bit. My thermocouple read very accurately but my PID kept cycling high resulting in my mash running a few degrees high. I already made adjustments to the thermocouple input value so I think it will be dead on next time. This is a lot of fun and look forward to more consistent beers down the road. FWIW I ran 10lbs of grain in 5G H2O and was able to hit mash out temp in under 15 minutes with my PID only pulling 10 amps.