Dimension 844 from master (hole centres of gas strut brackets), it looks as though the new samples are now 4mm narrower (840mm) than master In hole pitch distance on the gas strut brackets. I would prefer you re-do this to get the distance right to 844-845 and make new samples
Also it seem the bottom of the gas strut brackets on master is 1080 but on new samples is 1083mm I would prefer you redo the parts and adjust closer to 1080-1081.
Regards,