I just acquired a 17" FTS and got to try it today
There was just enough wind not to struggle (maybe 10 to 12 knots) so I thought I'd pair it with my RS850HA to see if I can wean myself off my lighter wind "guaranteed to get up and stay up" combo of GT2200 and 20" FT
I run a 93cm V1.5 mast for winging
WOW!
My 7'2 x 19" DW board means I can build speed quickly and get up without too much flapping and board pumping. Once up and flying the 850/17 combo was very easy to control pitch wise (stable yet responsive) and I was able to really get into hard upwind cranking turns to smack the small boat swells, general chop etc. Even when scrubbing off nearly all my speed doing these turns, I never stalled/dropped out of the sky and the short stab let me pitch the 850 down quickly to regain speed.
During the lulls it was so easy to pump for 100m or more and I learnt to trust the foil and let it glide with a slower cadence.
I used to see the "good foilers" on small HA front wings and never imagined myself to be able to ride something that looks so minimal, but hey, thank you GoFoil for creating such wonderful wings and tails and especially the fact that they are completely plug and play out of the box, no shimming, no slop, no fuss
Loving it !