Solid cam damage diagnosis help

Update: I measured several times and even had one of my techs measure to make sure what I was seeing was correct. Taper was all to the same side as predicted. Average taper as measured on the lobe base circle was .007! Average!!! Crazy stuff. After consulting with my pillow last night, I decided I am going to reassemble and check for coil bind since I don't have the tools to measure it unassembled. I just have a feeling that the lifter might have been chattering at the top of the lobe as well. Thanks for all the helpful advice thus far and feel free to chime in on my next move planned if anyone feels I'm going on a tangent.