My rib is a 1999 Picton Cobra diesel inboard rib 'flying fish' , powered by a Volvo KAD32-PA. After some weeks of renovation, we managed to get out on the Solent yesterday . she will rev to 3000 at WOT in gear , and 3200 in 'neutral'. The GPS gives a max of between 29 and 30 knots over the course of around 6 hrs. Electrically all seems well with a supercharger cutting in around 1500 rpm and out of around 2650 rpm. She gets onto the plane quickly but seems to run into a premature 'buffer' around 3000rpm. The online specs seem to suggest I should expect another 1000rpm at least. I have had both engine and leg serviced last month with new Volvo props as per originally fitment. I have replaced supercharger clutch, throttle sensor, control box and kick down switch so far. There is some black smoke on start up for about 45secs from cold - suspect this is expected. She is doing around 1 litre of diesel per 1nm . If I move the throttle at the helm , it looks like I hit the throttle stop at the engine as expected . The bottom is clean with fresh antifoul. Has anyone any ideas if I should be expecting more rpm or performance , and could any one recommend a Solent ( Chichester?) based Volvo marine engineer ? We berth at Chichester Marina.