I was using MGIV RC glossy paper of uncertain age. I bought the filters used, and I don't know how old they are. I also got some Kodak variable-contrast filters. In the interest of not wasting paper I would like to test the effects of these filters, but I'm not sure how to proceed. I do have some new MGIV satin paper. I don't have a step wedge, but I have a Kodak Projection Print Scale.