It would be simpler to use the MCC, but I'm a little paranoid that double serving on a keyword would get me banned. In the interest of being truly paranoid, I thought of a scenario where I would use Windows remote desktop to control a computer at my mother's house in another town. Using adwords, adsense, checking accounts all in her name. Wouldn't this make the IP login location be from her house? I've never used remote desktop, but thought it might be an absolutely safe way to double my successes. I'm worried that even if MCC would work today with no problem, that google might change a policy later, and ban my accounts or something. I hold your opinion in high esteem Robertpriolo, but am also interested in getting a consensus among experts as to the safest way to double serve keywords. (is that black hat of me?) or maybe just grey hat? PS. It's arbitrage but with relevency. I provide original content, but my adsense ads are the only income. Seems like a grey area for the TOS. Been about 18months with no slaps. About $80/day net.
If you are double serving, you just need to make sure you have different url strings, the servers have different ips, and the account credit card and billing info is different. Manipulating the ads from the same IP address and making duplicate campaigns is not monitored by them. They do not monitor account change activity at the IP level as the IP passed to them can easily be incorrect.