Cut a trip of notebook paper about 3/8" wide and 4 or 5" long. Run that thru the mesh as it sits. All this is going to tell you is if you're too tight - if you see it tear the paper or perforate the paper, mesh is too tight.
I set mesh roughly and then find out where the high spot on teh spur is - its easy to feel it. Then I set the mesh for this spot. If you set meash in a low spot, you'll be tto tight everywhere else.
Always re-check it after tightening screws - some change due to tightening, some don't.