If someone brought a song to the band. You would play with a certain degree of understanding. The strops etc would be all squared away as standard timing dictates. And if said songwriter starts saying"no, it goes like this", but what he/she is saying doesn't make sense, then that stems from a lack of understanding on their part. If they are wanting a gap that's 13.5/16 notes long because that's what's in their head, then how do you work with that? Well, you try and standardise the gap into the way you understand music to work. Either that or you bend your own brain and that of the majority of your band mates who have also bothered to learn, around the crazy assed gap, written by someone ignorant of the general standard