I'm a newbie with fiber and have been using Ilford MGIV regular and warmtone. I was told that the curl to my 8x10 sheets is "roll memory" from the rolls at the factory. It's not such a big deal with 8x10 prints, as the easel holds them down, but I've noticed that with test strips (made from cutting a half sheet of 8x10 into four strips) it's more of a trick. So far, I've been simply bending the strip by hand as I lay it on the easel in the area I want for the test. They never seem to lay totally flat, but close. Does this sound like what the rest of you are doing? If not, what tricks do you have? Thanks.