Hey Francone:
As you know, I use a longboard and a JP SLW92 with 8.x (8.0, 8.4 and 8.5) sails and a 10 meter race sail (4 cambers)
for light wind cruising I prefer the longboard with the HSM SPF 8.5 sail
when 12+ knots (about 22+ kph) i like the JP SLW92 with the 10 meter race sail
when it goes to 15+ knots the 8.x sails will do the job - on either board
however, the JP is more about planing than cruising
i do not believe you are chasing planing, but I may be wrong...
HSM makes a 10 meter SPF with one camber and rigs with a 490
the Ezzy Lion 9.5 with 2 cambers gets good reviews and requires only a 490 as well
most 10 meter sails require 520 and race sails have 100% carbon mast recommendations
and yes, an EZ-uphaul helps with larger sails
take care and enjoy the snow
ready to go on the ice with me ??
almost went today
joe