Very impressive credentials, I don't think we can get better than that unless there's someone from NASA who worked on re-entry :-). By imperfect bolts I meant what we all mean: rusted, bent, corroded. I still say, enough on the bolts, unless there is some firsthand failure information that someone can pass along, someone who actually experienced a failure, while in motion. (I wanted to say something about recalls by PJ Grady and DMC Joe but I'm not going to).