23 Tsunami Hull Moisture + Flex

[ericallen01]

Hello CSCers,

I am going over a 1974 23' Tsunami (Sceptre), 1-owner, I/O, and have found some unusual hull flex and moisture readings that don't appear on a similar boat I own.

The moisture and flex is between the inboard and outboard strakes, and begins about 3 feet forward of the transom, increasing toward the bow.

Is this a design feature (light construction)?

Can anyone point to a cause for high moisture readings in the SC glass hull?

The boat still rides fantastic.

Thanks in advance