IIRC the scales are around 3/32"up front, maybe a bit less, 5/32" towards the middle and taper back down in the back. There is good flex in the front end, but not the back. Where the pins are is tapered, so I think that is also part of my problem because the pins aren't flat on the scales to put pressure evenly. I ordered a bunch of stuff from McMaster Carr last night; got some threaded 0-80 1" long pieces and nuts so I can do trial setups easier and some other stuff like that. Going to order some pinning kits fro Maggards as well.