I have looked at Dan Burwell's (thanks, Mr. Burwell) walkthrough on the trigger job. I think I understand most of it, but I am not sure what is meant by the section that describes how and where the striker engagement face of the sear is modified. I understand polishing, but I am not sure what is intended when it says "cutting down the hump," "don't make a negative angle," and "this is not a simple angle cut." Can any one help a little more? Thanks.