Hey guys; I've searched here and see older threads on the 303 protectorant. Seems like everyone loved this stuff and it used to be necessary for long term maintenance of the vinyl. However, seems it is required any longer. Question is, do you still use it as another layer of protection even with the new Simtex vinyl? I purchased some as I thought, it can't hurt to give my seats a coating. Thought I'd check and see if there are any downsides to putting this on, when supposedly no longer required. Thanks.! Steve