I have Sealine F33.
The boat safety certificate expires soon. The surveyor is coming on Tuesday (hopefully) .
I haven't made any relevant changes since we bought the boat in 2014 , other than to add an extra fire extinguisher.
The BSS surveyor did the pre purchase survey for me and picked up on some faults which are now all sorted - so the new BSS certificate should be a formality ......................I hope.