I really can't see why everyone gets all bent out of shape over the gaps on the Weber or EZ-Que rings, they never have been an issue for me and I have used them on Kettles/Performer, Drum smokers and the Cajun Bandit conversion without any hassle.
Yes, if I use it on a kettle the temps are going to be higher, but I'm still grilling INDIRECT, so what if its blowing smoke?