Me too. While I'd like to switch to another dry food that is a bit more reasonable, since he's done well so far and is retired from showing (cause he won't go when at the show and holds it in), I don't want to take the chance of him blocking again.
I've only had one other cat have an UTI - my first one and he got it when he was about 9-10 yrs old (a one time thing). Only thing that I've heard is that if they get it when young, they can have problems of reoccurence the rest of their life. I hope there is better foods out there now, so we don't have a problem in the future!