thanks guys ,
i had been having 60 move around which is why i pulled trans . Only just got it back in last week . When i sent converter back to USA for service it came back with a mech diode and pretty much everything replaced but no explanation . There was some metal in pan , trans builder said it came from converter as rest of trans was good apart from wear on stator support (?) splines .
If it picks up to the 60 i expect i should see better ET maybe a pinch of MPH if sprag was slipping

Tex