Genset carb upkeep:  drain it and/or exercise it? Both?

I ran my champion open frame generator about 4 years ago during Hurricane Harvey. Once I no longer needed it I drained the carb and fuel tank, blew them dry and stored it. I pulled it out this weekend for this Texas freeze mess going on. I filled the tank and it fired right up. It ran 80 hours non-stop without a hiccup. Once I no longer need it, I'll blow it out and store it until who knows when. Hopefully forever.

If I know I'm going to run it in the next few months,I do nothing. Just put it in storage.