Keep at it ,black on inside of lock and on the hammer , put in mortice , work lock , I'm still only to half **** 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 **** ....mines still movin rough ... still have to keep refining . When trying to get it to go to full **** 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 **** position ...this ones doing that now