I know an A cat mast weighs about half of what the alum. F16 mast weighs (19lbs. vs 36lbs. or there abouts)
Yes, but A-cat mast won't hold up F16 use (2-trap, spi, etc)
The lightest F16 carbon masts (without corrector weights) are about 26 lbs or roughtly 75% of an alu F16 wingmast. Note that such a carbon F16 mast requires corrector weights to be F16 compliant ! A compliant F16 carbon mast is about 28 lbs (80%)
The F16 carbon masts so far have proven to hold up under general abuse. I think since 2002 two carbon masts have been broken, one because the diamond wire snapped.
Wouter