 It's not like it would hurt anything if you did that, but it's kind of a wasted step. It would be better to... If you make the cut on the end of it, if you can take a little bit of your caulking and smear that on the end of it, that's a good way to seal it too. And then put a coat of paint on it, nail it up there, seal the nail heads with a little bit of caulking, and then put a finished coat of paint over the top of it. And now you'll get the life out of that trim that you should get that...