Thanks, perhaps I should have said a little about it.
It was my first experience with both medium format and a Mamiya. At some point the rangefinder went out of alignment and many shots were also unusable either due to this, or because of motion blur.
I've since fixed the camera myself and I will try to get my hands on plenty of Tri-X 400 (instead of shooting 100 speed film) which I can push to such a degree that I don't have to worry about shooting at low shutter speeds.
I developed the B&W myself, and plan to learn how to develop slide within the next couple of months. I've been far more impressed with the results from slide in comparison to traditional negatives.
I've scanned all photos using an Epson 700 @3200 dpi