One thing I lack is niceness. Sure I may trample on your correction, I really don't care. I only correct the newer ones if something catches my eye. I try to start on page 30 and correct from there. Some get missed and after 24 hours I think it is nice if someone says hello. I am lousy at not being nice, but I think if someone took the trouble to write, someone should answer. I try to find the stragglers. It suits my style and lack of ability. Who are they going to complain to?