we have used 50mm x 1.6mm ally on all our boats until we went carbon about 5 seasons ago. never had any issues with the ally sections or carbon ones for that matter. carbon section is smaller again than the ally.

Last edited by alegayter_mossie; 10/07/13 03:05 PM.
"Sixth Element"
1782 MK2 w/spinnaker.
Lake Bonney Y.C.
National Sec. / S.A President / S.A Measurer / Commodore LBYC