Those of you who run test-strips of neg's might be interested in my latest test-setup:
The strip is held down with hobby-magnets, with corresponding magnets under the bottom. The big white thing is my latest addition: It's a baffle to prevent developer from rotating in the tank and developing the outside more than the centre. It's a PVC extrusion which happened to fit well, but anything that blocks rotation of fluid should work. I glued shims on the bottom so it won't touch the neg. The neg you see is in fixer, and was developed in XTOL. Here's the graph of that neg:
My goal is to get corporate-quality test-results on a home-budget. If somebody has a better idea for developing strips uniformly, I'm all ears.