I just received 4 used 8x10 film holders (plastic Fidelity) from a very reputable shop. Upon inspection, the top of the holders (where the dark slide goes in) is bowed in the middle. The center is wider than the ends. the fellow I bought them from said they should be fine and this is common. Another friend told me the same thing...light leaks usually occur at the bottom where the tape is.
Do you agree with this?
I already loaded color transparency film in the holders (expensive), and haven't shot due to poor conditions. i will test them ASAP, but wanted your input.

Thanks,
Jon