The overtravel screw must be set to prevent the sear nose from catching the half cock notch. Not too hard to do.My thought was a relief cut was needed. Not just to set sear engagement length re. hook height but maybe to cam out the sear as the sear's escape edge passes under the hammer hook tips. I also thought today's hammers might need that relief to ensure the sear wasn't recaptured by the half cock notch as the hammer dropped. This issue could be more pronounced for a bullseye shooter over an action shooter as the bullseye shooter has a much slower trigger pull.