>>3452799 >>3452888 I own the 67ii in that picture, I bought it after using a 6x7 for a bit. First up, 6x7 has two versions - there's an MLU and non-MLU. The MLU version is nearly identical to the later 67. If you have to get an old model try for the 67 since it's less likely to have been beat down through years of professional use.
As for the 67ii:
Still only shoots 10 frames per roll of 120. The only difference is if you have 220, then you get 21 frames. Good luck finding 120 film. You can also do double exposures on the 67ii (lol). In addition to bulb it's also got a T mode for super long exposures so you don't drain the battery.
It has changeable groundglass but the split prism one is stupid expensive and the others just add grid lines. They made some bright screens but apparently those darken the corners on wide angles and are aimed more for slow telephotos. Either way, the default focusing screen is about 1-2 stops brighter on the 67ii than on the 6x7, which helps when you stop down for DOF preview. Speaking of the viewfinder - the viewfinder in the AE prism on the 67ii is a bit smaller magnification than the 6x7 TTL prism, so you don't have to strain your eyes as hard to check the corners. I like the 67ii viewfinder a lot more, you still get that "pop" when you're focusing but it's easier to compose with.
The right hand grip is really nice and it's got a thumbrest on the back. Those make it a bit easier to steady the camera with larger lenses/filters, and in general it's easier to hold it in your hands for longer. Not to say there's anything wrong with the 6x7, you can handhold it comfortably too since it's so beefy. If anything, you could just buy a 3rd party right hand grip and slap it on the 6x7 if not having a grip is the issue. Just be aware that on the 67ii, you don't have strap lugs on the right hand side anymore so you can't use a waist level finder and let it hang from your neck like on the 6x7.
