Hello: when you ad or take away an adsense block from your web site, does it take a couple of days to render the results either good or bad pertaining to ctr ecpn etc. or is it instantanious?
To get results on any sort of test you need to provide substantial time to get a more thorough result. Ad income rises and dips day by day, you need to trend over time
it will take about max 1 week to draw a proper conclusion. I suggest you should use channels which ad block does well and which gets higher CTR/eCPM. This will help in tweaking the channels for higher payouts.
You will see results later the same day, but as others have said, you need to look at a longer time frame to even out the daily ups & downs. Make a channel for that page before you do it and check the before & after.