I know of no way to weight it but std. mast is 10 5/8 in vs of existine mast that is 13.0 in. Height does remain the same. About 22%, according to Axexa? The present owner, who has sailed it for 4 years, said he has noticed no healing problems. Approx. 7.5#s, though it felt heavier. Much better Spreader setup though. I really like the boat, so I will learn to live with it. Intend to mainly sail as many of the California Lakes as I can.