Trigger pull. No4 MK1*

[Chubbs]

Hi Guys

Having reassembled the rifle with 2 different fore ends including the original. The trigger reverts back to 1 long smooth pull. If I take the fore ends off and reassemble the trigger minus wood , the trigger goes back to 2 stage. Does the wood work where the trigger fits need to be trimmed, I also note that the spacer has been ground shorter. Even with the longer spacer fitted the trigger is still one long smooth pull. the front screw has 2 marks on the trigger guard and these line up with screw slot for each of the lengths when tight.
Attachment 82149Attachment 82148

Regards Chubbs

Having further checked what is going on i have found that the angle at the front of the trigger guard seems to make all the difference. If the gap between the guard and the receiver is greater than 20.2mm's then the trigger only has one long smooth pull. Anything under and its a 2 stage pull.
Attachment 82150

The measurement thickness on the stocks is

Original 21.12mm
New 21.69mm

So how would you thin that space or does it require new trigger parts. I am at a loss.
Thin trigger guard is not bent.

Regards Chubbs