I bought the Op/Tech strap for my Mamiya Rb67 Pro S and it was a little bit of a hassle putting it on too. I guess if I ever remove it I will have to work at it with a crow bar. I have ordered another one from B&H for my second Rb and that one will be on for good too I fear. However, they are still cheaper than the Mamiya strap which costs $50. Ric.