Lathe chucks

[the penguin]

I looked up both model drill chucks, the link you posted, has them at a good price for both of them,  It maybe just me, but I'm not a fan of drill chucks with threaded mounts, could make working with the lathe in reverse questionable. I know they can be put on with lock-tite and other methods, but still make me uneasy. Maybe others could, speak their thoughts, on threaded mounts.