Handy thread, I've been dithering over making a similar post myself as I'm in the situation of not having any chucks and need to sort out an eccentricity issue with my homemade adaptor/drill chuck combo. The mandrel ends up binding in one of two orientations, true but off centre to tailstock or off centre to tailstock and rotating around a point. It's not the adaptor at fault it's the old drill chuck.
I'd been tossing up between the Sorby Patriot and the Versa Chuck, I'm limited in choices as I need one that takes an inset owing to having a 1980's Elektra Beckum lathe. Both seem to come in at approx the same price when you add the required bits in, it seems that the Versa Chuck is rated well by the comments above and would add flexibility in the future. Ultimately I'll be replacing the existing lathe but want to get something I can move onto a new model when I do.
The other option is to replace the lathe entirely with something that actually has a MT in the headstock to mount a mandrel, but I was eyeing up the option of the pen jaws to also use the lathe to drill. Anyhow, I'm derailing the thread slight and should make another :)
