I doubt it. Some level of experience here. I build with aluminum. I've been doing so for the last 25 years. I have two friends in the business who have been going for at least as long as I have. All three of us have fairly severe arthritis. Particularly in our hands. Two of us have Dupuytren's Contracture, otherwise known as Vikings disease. I'm not sure on the odds of the DC, but I reckon they are pretty small that 60% of the long-termers who I know would suffer. Unless, of course, the aluminum plays a roll. Tell your friend to do what he wants. I would recommend against it.