The secret to not destroying a perfectly good Leica strap for the lugs is to have a great dealer or get to know your Leica rep. I have both and have not had to sacrifice any of my new, unused straps. Most dealers that sell used Leica gear have a drawer full of old, worn straps that they will sell for a couple of bucks or give to you so that you can harvest the connectors. My Leica rep in Seattle, Brad Weeks, gave me his old straps from last year's demo cameras. But if you have to sacrifice your own strap, here are some options to consider.
The most recent itteration of the strap has a non removable plastic clip that secures the metal clasp to the strap. The metal ring has two prongs and need to be seperated over the camera lugs to be fastened. In the picture, it is on the camera. You can cut the stitching and remove the clasp and if you want, have a seamstress restitch it later. The old version of the strap, has an open metal fastener and the clip is not secured to the strap. It is the middle strap in the picture. The top most strap shows the plastic clip that needs to be cut free from the strap. You could also just cut the plastic bar on the clip on one side and remove it from the strap. It seems that the main purpose for this attachment is to keep the clip from becoming lost when the strap is not attached to the camera. It can't go beyond the camera lug afterall.
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