That zyglo sounds interesting. I will see what it is. The used and unused pistons all have exactly the same scratches. Here is a close-up using crop.
The first is a report for the virgin oil from the bottle. It is a top grade oil made for motorcycle race use. What I looked for is viscosity. It tests to be the viscosity it says on the bottle. Also, it has zinc and phosphorous. This is good. It is a synthetic made from ester base stock.
The second report is for the used oil. It has been through the dyno work and three runs down the salt. It is starting to collect a little bit of copper and lead. This indicates a potential, but minor, problem with the bearing shells. Lead and copper were 0 before. Now they are 8 and 10 ppm, respectively.
This oil lubes the engine, clutch, and transmission. Shear from the gears and the resultant loss of viscosity are something I worry about. The oil has lost some viscosity, but not enough to be worried about. SUS viscosity was 70.7 and now it is 67.3. Minimum is 64. cSt viscosity was 13.15 and now it is 12.23. Minimum is 11.6
Rod big end bearing fatigue has been an issue. Fuel contamination of the oil can alter the fatigue resistance of the shells. There appears to be only a small bit of contamination. This is good. It was zero before. Now it is <0.5% Max is 2.0 %