3”!? Hell, I’ve been wanting to throw any one of these on a 5″ since back when the F3S (And shortly after it did, the F4S) first came out and then got on my 5″; ” OneDay,……” would really be eager to see if it’s anywhere near as good as it really could be for what it is and what it should be All things being for it to operate at above peak performance being pertfect), List.