I believe the mast is a different height, however I am not sure as to all the differences.

I think the different height mast would cause the most problems as it would not have the "catch" for the shorter sail.

I know that my comp tip mast does not have the bottom "halyard catch" (probably the wrong term) for when the sail is reefed. Apparently the older non-comp tip masts have a second catch.

From what I understand, reefing the sail should depower it quite a bit? Have you tried it with a reef, yet?

Cheers,
Ryan