I had a hard time with a couple of the bowl screws and wound up having to use a needlenose vise grips to get them out. This would be next to impossible with the carbs in place. It isn't that hard to pull them. I'd say pull them the first time and install the allen screws in the bowls.

I wondered why the frisbee was getting bigger......and then it hit me. '05 BA - Mulberry/Graphite,128 mains,42 pilots,TBS needles,drilled slides,debaffled stock pipes,Uni,no snorkel