I don't understand why you where offended by a reply asking you to reconsider your choice of format. You were also asked why you wanted a 6X7 as a everyday walkaround camera. You havn't until now given any reasons for considering 6X7 only. Bear in mind that this forum have a lot of members with a lot of experience and they just may know a thing or two that you and I don't
There are reasons we never saw 6X7 SLR's used more as walkaround cameras, you know.
The ~1 kg more weight on your shoulder from a P67 oposed to a 35mm slr is actually a lot at the end of the day add to that the weight of an extra lens or two the 10 shots a roll, a somewhat slower filmchange and a dimmer wievfinder on the older versions and you might find it not as suited to the task as you thought. That said I find the P6X7 to be a great camera and the format is really nice but I wouldn't disregard neither 4,5X6 or 6X6 as they will give good quality as well and perhaps even with a lot less hazle and at a lower cost.
Best regards