I haven't created a new add unit in some time and decided to monetize an older game related site with 3 units (2 link unit + 1 ad block). Starting the day after and up until today my entire account earnings are down significantly. Looking at the charts everything took a 33%+ downturn from the day I created/added the new units.
This suggests all units are somehow tied together or that my account is seen to contain traditionally lower paying content(games), is there any way to fix this? I would never have created the units had I known this would be the result, traffic to all sites remains the same as before.