Yeah, I’m not likely to forget it now. I’m thinking about etching “USE 0.5s DELAYS” on the front and back of every MX-980 and MRF-350 combo I do from now on to save the next guy the headache.

All I can say to the “0.1s spacing should work” is that it didn’t; 0.2s didn’t either; and that all the MX/MRFs were manufactured this year. I didn’t get as far as setting up favorite channels once the day turned in a macro troubleshoot, but what you said about only needing delays between codes sent to different devices make sense, Duct Tape.

Considering also sending both MX and MRF back to URC so all they have to do is plug it in and see what I’m talking about since they can’t reproduce with what they had on the bench.