In fact that is the only intelligent way to test anything Rbacal.
Blah blah blah blah. For some reason you think Google's algo is unable to be tested. So everything is just a made up list of things. Sorry, but that is bad advice. When I have sites that don't have half the things people claim fix quality score, I don't buy that it is all necessary. Surely there can be a lot of factors, but some are obviously more important than others. I am saying that relevancy is more important. Relevancy is something that has been the core of Google's business for a while. Relevant ads to relevant keywords very important. Showing relevant ads to site pages on the content network etc. Relevancy has always been the core of their business.
Regardless, if you tell me there are 20 components to getting a good quality score, and I do one of those things and get the same result as someone who did all 20, who are you to say that I am wrong? It is silly to think you can't properly test individual components, even in a complex algorithm. Google has not said exactly what impacts quality score, so people are just doing a lot of guessing. Throwing 20 things at the wall and then claiming that is what impacts quality score, is not the least bit scientific.
And I am telling you, you are way over blowing the complexity of the QS algorithm or ignoring the fact that some components are significantly more important in it then the others. I prove this to myself every single day.
Yeah but if I do x every time and it always works, I feel pretty comfortable in my position. I don't really care if anyone else gets their bids lower or not. Less competition for me. Yippee. I just think people are way over-analyzing and over-working the situation.
I don't have any jacked up bids on ANY of my campaigns. Different sites, different campaigns different industries etc etc etc.
Don't tell me what I do and don't know. You can claim that it is a waste of time, or the algo is some kind of evenly balanced equation, but that is not likely true.
What is funny to me is that people rarely even mention relevancy when they talk about this stuff. All I see is outgoing links, privacy policies and all these other things.... yet relevency does play an important role in it, and people choose to ignore it.
Do so at your own peril. I am not going to argue with you about this anymore. Like I said, I know what works for me. Other stuff works for other people. I don't care what anyone else does, to be quite honest.
Your advice, however, would be akin to telling people not to do split ad testing because human beings are too complex to detect any particular pattern in what ad might do better to you.