Had a chance to demo the 5.2 and 4.8 S1 Pro two weeks ago and am a bit lost for words to describe the improvements Ben has managed to deliver in his latest offering. I have been on S1s since 2011 and have come to expect a notable improvement with each iteration but this year they are something else.
Only got to try them in the bay but over a big range of wind conditions ranging from fluky 15-18 knot on shore to 25 knot cross shore and everything in between. Had the '14 5.2m S1 rigged for a side by side comparison with a demo 5.2m S1 Pro both on a 90 rdm and one lucky team rider's 4.8m S1 pro on a Gorilla mast. Gave them a go on a couple of boards, 80L Nuevo, 84L Nude Chopper, 90L Starboard Flare, 89L JP Freestyle.
The experience left us scratching our heads a how much better, seriously better these sails were compared to last years model, and they were and still are great sails. Best way to describe the improvement is its like going from a 60% carbon mast and aluminium boom to a 100% carbon mast and boom or if you are into road bikes going from an aluminium frame to a quality carbon frame ride.
First thing you notice is how light they are in the bag, then how much lighter they feel carrying them down to the beach but its when you first pump on to the plane and hook in that the expletives start flowing.
On the beach they appear quite flat compared to the '13 and '14 S1s but on the water power and wind range is up noticeably from last year but the weightless feel, acceleration and instant but controlled response to gusts is what will leave you scratching your head.
These things must be a bugger to mass produce, each panel appears to be individually CNC printed with carbon fibre ribbon to get the loads precisely distributed and flex where its needed. The fibres lined up so well between panels we initially thought that the whole sail had been printed in one hit but they look like individually shaped and printed panels. I guess you get more control over sail shape that way.
I'm a relative light weight at 70kg so thought I would give the 4.8m S1 Pro a go on a 370 Redline after trying it on a 400, it definitely worked for me which was a bonus. Softened up the sail quite a bit but not too much. Had no complaints on the 400 mast but much preferred it on the 370. Probably stick with the 400 if you weight anything more or use a quad. The 4.8m worked so well for me I'm ditching my '13 5.3m and just going with the 4.8m as my biggest sail this year!!!
Outline looked very similar to '14 with the top 3 battens shifted up a little and the sail a bit taller than the '14 model.Ben has really come up with something special with these full CNC printed sails, I wouldn't be surprised to see the other big manufacturers following suit. Hopefully they can scale up the manufacturing process to keep costs down so us mere mortals can afford them ;-)
The Blade Pro has also gone through a similar transformation so if you like a more locked in power feel that might be worth a try.
Some pics below: