yes
The size of your jib/genoa depends on the prevailing conditions in which you sail, and your comfort in doing so.In 10 knot conditions, certainly you'll go for a 150; perhaps a cruising spinnaker would make your sailing more fun!There are always complexities to this issue, I'd be happy to discuss them with you.Dave GroshongCustomer ServiceSailboatOwners.comtoll free 877-932-7245 ext116, Mon-Fri, 9-5 Pacific