I typically plan my smokes so that I don't have to bump my temp up. I think in a perfect world you leave it at 225 the whole time, and bump it to push through the stall if you are in a time crunch.
I have done about a dozen butts in the SI so far and have only had to bump it up twice.
In the end, we're only talking about a 15 degree bump, so maybe it is inconsequential to the flavor/moisture/taste/etc. But, unless someone tells me that they get "better" results by bumping the temp, I am going to try to smoke the whole butt at 225 as I usually have the time because of starting early enough. If anything I sometimes have to rest my butts in the smoker for an hour or two and then a 1-2 hour rest in the cooler.
My 2 cents.