Cutting around pools has not worked out for me. I don't think it's a case of professionalism; more like the wind, and the action of trimming around the pool. I have been talked into it when I knew it wouldn't work out, and it didn't. One man blamed me for clogging his pumps and flooding his yard. He tried to show me how to angle my blower. I tried lowering rpms and using a mulching mower. I tried not trimming until they said something about the trimming, then they complained about a sliver of grass going in the pool. I lost count of how many times i tried to please people with with pools, and I've decided, that I will not take accounts with pools. I'm not saying that keeping grass out is impossible, but I just feel like I want to be out of the equation.