muscle memory. i can pretty much handle my jrxs3 without looking at it anymore. for a long time it was look down look up look down look up watching back and forth from my radio to my r/c. more than once I looked down and wasn't even holding my remote. I'm afraid to upgrade radios in case it feels different!
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It's "Dr. _paralyzed_" actually. Not like with a PhD, but Doctor like in Dr. Pepper.