After debating the issue, waffling, etc., I have decided to shoot some of my older "suspect" Kodachrome as black and white. To that end, I am wondering if any of those who have already done so have any thoughts regarding an appropriate ISO to use. My suspect stash is ISO 64. I am particularly impressed by the shot that Dan Murano posted earlier in this thread. As well, a second question for those who have done some experimenting: Is there a particular developer (are there a couple of developers?) that have worked well?