Two words:
lightning protection.
I think that our Fleet 86 started falling apart when we questioned the need for a plastic tip and all rope halyard due to the negligence of someone who probably should have been given a Darwin Award. Our biggest concern on long narrow Finger Lakes was the sudden appearance of T-storms from the West or East that we could not predict because of the surrounding hills.
There is a "cone of protection" that forms around your
highest conductive point I can't remember the formula, but the diameter of the base of the cone is roughly 1/3 of the height of the highest conductive point. In other words, with an all aluminum mast enhanced in conductive nature by a metal halyard on a H16 you have an area roughly protecting the tramp. Obviously, when you replace the top 1/3 of the mast with plastic, you lose 1/3 of the cone. I guess you could huddle around the mast, but it gets hard to sail in an approaching storm in that position while you are trying to get to shore - the safest place to be
I didn't change. I think will find very few boats in this area who did.
Sail on and enjoy it. I agree with the info on performance, (good one H16Brazil) but the usual wind favors the all metal mast.