I've used 303, raggtop, and recently using CarPro Fabric & Leather.
Between the 303 and raggtop I prefer 303. I just got the CP Fabric & Leather in a few weeks ago and looking forward to coating my Sky's top in it. I've only had the chance to coat the interior but so far thrilled with it. I'll be doing the top soon
Jim, I think I'm going to buy some of this Renovo cleaner you told me about. I've never been fully satisfied with the 303 or raggtop cleaners.