I've FFS pretty much each time I've made a WOT run in my MS3. Zero probs. Not saying it doesn't reduce the life of the clutch, but so far I've never even smelled clutch burn, not once. I dont beat my car to death, but I do some spirited runs pretty often and always FFS my 2-3, 3-4, and 4-5 shift. Pedal feels fine and its been over a year doing this. So perhaps Mazda wasn't lying when they said "you wont break it.." Also, I tried finding my DH log, but dont have it at work, I've seen up to 7300 rpm blip (for a split sec) during a FFS run. So I dont particularly know what the rev limiter is on the MS3, or what it allows for a blip of a second.