Cheers Guys ,done everything above and it now rocks!!not at all...
your gonna need to;
take the grips off and unplug all the leads
take the grip frame off
undo the grub screws holding the trigger and sear pins in and give em a clean..
thanks for that Mate!Sounds like sear on hammer is not catching .Check low pressure reg is set high enough. If it is adjust hammer lug ,there should be a hole in the top of the body for alen key (take out bolt) give it 1/4 turn until it catches.