Surely the point about an 'open' or formula class as opposed to SMOD or even MMOD is that if I wanted a new mast for my non-SMOD boat I could ring round several spar makers and choose a suitable replacement based on price or quality or reputation or delivery or different section or anything I choose to be important to me (such as the colour of the spreaders <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />).

The same principle is applicable to sails, beams, rudders etc.

With SMOD you get what 'they' say you can have and pay the (inflated) going rate.