I just purchased a Pentax 6x7 camera, my first move into medium format. I will need some help finding an L bracket for Arca Release type for my Pentax 6x7 camera (not the newer model 67 or 67II). I read that some people bought the Kirk L-Bracket BL-67II for their Pentax 67 body and it worked for them despite that Kirk advertized it "for Pentax 67II ONLY". Anybody used it for the older model 6x7 (again not 67)? Thank you for your help.