I got some 8x10 holders today to use with my 8x10 conley new view (2 newer plastic fidelity/lisco types and 2 wood-framed anscos). They fit quite well but I notice there's a bit of clearance between the sides of the holders (in portrait orientation) or top/bottom (in landscape) and the frame - maybe 1/8" to a bit less than 1/4". Is this normal? The rest of the holder (e.g. the ridge / light trap near the dark slide entrance) seems to slip right into place just fine so the dimensions are just about right - the holder is just a tiny bit more narrow than I think would be ideal.

Should I consider manufacturing some kind of wooden insert to take up the slack, or just shoot some film and see? Or do these normally have a bit of clearance to make insertion easier? The next month or so is going to be spent on restoration (especially bellows) so I can't just go out and test it right away. I'm just wondering what your experiences are with these old cameras and newer holders.