Good one Randy, a bit of cross correlation would be good.
The biggest ever tracking discrepancies I ever found with casinos were ages ago…starluck and planetluck…both only ever showed about 1/3 of the actual traffic sent and for the amount of traffic that was their discrepancies were mindboggling .
To clarify with the click tracking…a few amiss here and there is normal and I am happy to live with around 10/100 discrepancy as these may be closeouts or the odd glitch.
In fact most I find are only 2 or 3 out per 100.