OK, figure I'd change out both the nicktane pre-OEM (10K) and the OEM (15K) fuel filters. Any tips with regard to the process for changing them and re-priming? I've done the OEM before several times - no problem. But should I not do both filters at the same time? Should I sequence them (do one first - prime and then do the other, re-prime) so I dont have to get both filters primed at the same time? Seems like that tall filter will hold a lot of air and would require a long time to fill up. Any one do this yet? Thanks in advance.