Is this the way to improve your Quality Score & Min CPC?

I had 'widgets' in one of my Ad Groups which had a minimum CPC of 0.15 ... it's a word that doesn't get many impressions but does lead to conversions.

So... what I did was produce a new Ad Group called 'Widgets' - the Ad Title had 'widgets' in it and the URL was 'mywebsite1.com/widgets' ... I went into the new Ad Group and my min CPC was now 0.08!

I thought right ok ... I went back and deleted it and made a brand new Ad Group called 'Widgets2' ... I had the same 2 Ads, but the only difference was I used a different domain ... 'mywebsite2.com/widgets' ... I went into the Ad Group and the minimum CPC was 0.05!

Is this a way of finding out straight away which landing page & Ad Google will prefer, without the need to wait weeks? In other words .. is Quality Score worked out immediately when a new Ad Group has been created?

If so, this seems a very good way to find out which is the best landing page to get the best possible Quality Score.

"as in that case the Quality Score gained will be gone"

In this case it seems like a good thing it was gone though. I'd only recommend trying this, for keywords that are labelled poor and their minimum CPC keeps rising.

Agee very good way to find that what is to be exact landing