Yeah I did some last weekend too. But I had the cooker cranked up into the 300s this time since I was doing chicken.
Last weekend I did partially shucked and this weekend fully shucked. It all turned out great. The fully shucked corn lost more moisture thus condensing the flavor/sugars while also having more smoke flavor, so it was right up my alley. The kids preferred the partially shucked corn from last weekend. But they liked both.
My rule of thumb is cooking it for ~45 mins at these temps, but it’s imperative to keep direct heat off it to do this. Since you’ve a Weber the key would be to light one side but not the other and cook it indirect until the kernels just barely start to pucker.
I tried basting some in butter and salt before cooking and others just plain then salted and buttered after cooking, but there wasn’t much difference.
I’ve been cooking sweet corn on all kinds of grills/smokers/cookers over the years and it’s really hard to mess it up unless you take it off too early.