In his Chamonix/S&S 7x17 FS ad, Clyde Rogers mentioned that he places black photo tape at either end of film holders' loading flaps to avoid small leaks when handled in bright light. He quoted Sandy King as saying this is normal. With Clyde's permission, here is his photo of the (now sold) holders showing tape pieces affixed.
Please share whether you have problems with light leaking in that area of your holders. If so, which size/type holders are afflicted? In what orientation(s)? How do you cope with this? If you use the same approach that Roger does, have you noticed any change in focus as a result of the extra tape's thickness (which my research indicates is around 0.005 inch to 0.006 inch) pushing a holder's flap end further away from the lens?
Thanks in advance for posting your experiences.