RE: 9.5 in an Stype?
In looking at the recommended sail sizes on under the "Products" site, the S-Type 137 only recommends an 8.5 m2 rig as the largest.
At 72 cm wide, that may be the largest sail you can realistically use, and the S-Type, even with a big sail, is not going to be an early planer.
The Carve 144, on the other hand, does recommend up to 9.5 m2 rigs, and since it's 78 cm wide, it's going to plane significantly earlier.
I'd go with the Carve 144 unless you can test the S-Type 137 with your rig, before you make the purchase.
Hope this helps,