Yeah I run a Large Big Green Egg and the size of the blower is overkill. I can run fan-only up to 350F and control temps up to 600F just by cracking the bottom vent a little extra. Maintaining 225F, I often don't use any fan at all (except startup and some temperature dips). An XL is 75% bigger in area, but if the standard fan isn't sufficient to maintain temperature, it should be close enough to use just by cracking the bottom vent a little. If startup is just taking too long, I speed things up by opening the top vent all the way until I pass 200F so you could do something similar. Once it is running it doesn't take much air to maintain.