mine started at 14 lbs when it was brand new…i weighed it yesterday and it was 21!!!..maybe time for a new one
If you are proning for a while you could hang it up and vacuum it. I’ll bet you could get a few lbs off it. Beasho over on the SUZ did his and got it back to a good weight.
Your boards never get a chance to dry!!!
Mine is about 16 lbs.