Managed to finish this boat tonite,easy build.
My water jacket from Etti came the other day,it was that what was the hold up.
Going to try it with a new sharpened and balanced x442 at weekend.
It balances perfectly at 33%.the hull is totally water tight after a bath test,
The only thing i should have done is mount the motor a bit further forward,the angle of the stuffing tube and my mount wouldnt let me drill the water nipples on the jacket in the correct place,ie 1 up,1 down.The bottom nipple wouldnt fit without touching the hull.
It will be ok i think..Also it it would have allowed me to use a longer flexshaft and stuffing tube,enabling a good piece of silicone tubing on the flex tube,reckon a fair bit of water will come up the tube on the lake[] I can possibly redo it after a trial run.
I also removed the left turnfin and adjusted the right the proper angle,we Brits mainly do right turns on clockwise circuits[8D]

it wont be no speed demon,but reckon a good 40mph which is as fast as our nitro version.Its a fair bit heavier than nitro,but we always thought the nitro one was too light and flighty in the rougher water.
It will be a good long run time boat for my 12yr old son.
I'll get some video..
Brod..