Either size vise would be great as long as the overall length does not hang off the back of the table.
I have a 6 inch Quad 1 that does not hang off the back of the table. It doesn't hang off the back of the table because I cut 2 1/4 inches off the back end of the vise. I still have the 6 inch width, but now it only opens 4 1/4 inches. That's fine for me because I don't do big parts any more. :wave:
Oh yeah, and when I need to, I can turn my vise in its side to hold long skinny parts.
You can buy GOOD PARTS or you can buy CHEAP PARTS, but you can't buy GOOD CHEAP PARTS.