I've often thought of putting one of my "A" cat masts up on the Taipan to try it, CF one would be longer and lighter- Greg Goodall told me not to waste my time- would just make boat too "tippy" and drive bows too hard- But a Viper bow may be a different story. You would lose sail area if you used the "A" sail so would need to find a bigger sail w/ longer luff (and I happened to have a few 18sq sails around-- If light air might be a killer but anything over 8 would be crazy even with racks-)

Kirt