All my own servicing & maintenance that is within my skill set. Oil and oil filter changes, fuel filters, drive belt, water pump, steering cable, drive & rudder shaft seals etc. Bought my 06 SN196, prev owner always had bilge pump going & it had been back to the dealer to be fixed multiple times with no noticeable improvement. Gateway gauges were intermittent and condensation was forming.
Tightened drive shaft packing gland as described in manual and the water intake had never been tightened & sealed & shifted water filter so wasn’t over electrics and gearbox. Fixing these solved the issues.
The better you know your boat the more you can solve issues before they become major & fall outside my skill set.