To me, no matter where the course is, f&f is about marrying the design and turf/conditions and maintaining those conditions regardless of the season. An f&f course can't be fast one week than slow the next. Within reason, consistency of conditions is very important for f&f courses. Sure, balls will roll more in hot and dry conditions and sure, the amount of roll a ball gets is important as well, but only in the context of the design. An example of f&f may be when playing from rough (and even sometimes from the fairway in fairly extreme conditions) and bad angle, ONLY the VERY BEST of shots will hold a green after carrying a bunker or whatever. When I say very best I mean most pros would fail most of the time. There isn't much point in f&f if angles don't matter OR if a course is designed primarily for aerial approaches. In fact, one could argue that f&f is terrible for these sorts of courses and this may well why the marriage of slow and aerial golf developed - it makes sense - only folks have a hard time divorcing the concept of slow golf when on a course that can and should be maintained in a more lean and mean style. Another example may being forced to pay attention to hazards, fairway cut lines or whatever at a distance one wouldn't usually hit that on normal courses it wouldn't be an issue. I would also say that f&f conditions allow for a player who flights his ball best to suit the conditions can make up a lot of ground who can carry the ball further. What percentage of roll these sorts of examples need is a question I can't answer and I don't think is relevant.
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