6 jaw chuck

I recently acquired a South Bend Lathe and it came with a 4 and 6 jaw chuck. The lathe needed some cleaning and I wanted to take it apart and get a good look at some of the internals before I started running it and this past week I finally got it up and running. The 6 jaw chuck was already...

i'm toying with the idea of purchasing a 6 jaw chuck for a lathe i own. if anyone can state the virtues or the disadvantages in their view, i'd sure like to hear them. i have already accepted that this item is not necessarily a must have, i have gone to this point without. thanks in advance...