Keep at it ,black on inside of lock and on the hammer , put in mortice , work lock , I'm still only to half cock now , take out lock and remove black spots on wood ....its workin better each time ... I marked sear hole position on the side , then marked on bottom , drilled holes for slot , opened them up into slot ....now I can put lock in and work the lock with screw driver in slot ....keep going till it works correctly , no drag ,no marks inside or outside at hammer throat , make sure its seated , bedded completely ... make sure it goes to each position and , rest , half , full , and doesnt fall or is touchy at full cock ....mines still movin rough ... still have to keep refining . When trying to get it to go to full cock most of the trouble will come , at this stage ,from throat of hammer hitting wood on outside above lock keeping the hammer from going back any further and not getting to full cock position ...this ones doing that now