There was a period where these Compass built Farr 38's had to have two inspectors look before signing off for cat 1. In particular the flat area at the back of the keel generally needed timber reinforcement to ensure the hulls integrity in case of touching terra firma .
The problem with the glass Farr 38's was that they had a moulded stub keel but the floors only bridged the stub, they did not extend down to it. Not sure if this was how the Farr office designed it or was by Compass Yachts.
This meant you contacted ground there was nothing to stop the keel rotating, ie trying to pull the front keel bolt thru the bottom of the stub and push the back of the keel up into it. First boat to experience this was Peter Walker's Firecracker, ironically at the time he was partner with Farr.
There were various solutions employed to alleviate this. I sailed on Flight Path and she had heavy galvanised steel plates from the front and rear floors to the respective keel bolts. These proved their worth when she hit a rock at 7 kts.
Other solutions were used eg on Titoki the whole stub was filled with timber .
The comment from Mate about steel floors is not quite correct, the floors were fibreglass but steel was used to alleviate the problem