Martin,
I realise its the combat 15, I put up the PAW19 figures to show how good it is , it seems to be in the same legue as the MVVS15 which is a powerfull diesel for its size too. Looks like someone at Sharma knows what they are doing. Now youve had it running hows smooth is it? is the crank balanced ? I assume from the rod size comment youve had at least the backplate off.
Both my PAW 19 and 049 have NO crank balanceing= something I'me going to try and fix.( have grinders and not afraid to use them )
Stewart