I prefer Ultracote. I have used both for number of years and switched to Ultracote exclusively unless recovering a plane that already has MonoKote. This is just my opinion as this topic appears to be like Chevy vs. Ford in the threads. All I know is I have actually covered wheel pants with ultracote because I can pull and stretch that stuff like crazy. Also I have found you need to use fairly fresh stuff whichever one you choose. I wrap all my covering rolls in plastic wrap once I am done to keep if fresh longer. There is nothing like the smell of hot Ultracote in the morning... LOL