Hellow! I don't know whether or not the Oday 25 was ever offered with internal halyards, but I am making the conversion. With this, I will have to do something about my wiring. The original wiring in my mast was just run right up the center. This led to sleepless nights of hearing the wiring slap against the insides of the mast. I corrected this very successfully by running the wiring through PVC surrounded by pipe insulation. But now that I want to run the halyards internally, I would like to attach a piece of PVC to the inside of the mast so that it will not interfere with the halyards. Any suggestions??? Michael Gordon michael@chocolatetruffles.com