Do you see how keyword research tools will say that a keyword is super easy to rank? but then you analyze it manually and viola! it is NOT as easy as you thought it was! the tool is using some sort of automated formula, and you should know by now that nothing in SEO can be automated.
In a nutshell, KGR is basically a way to find sweet long-tail keywords that are not being targetted by other websites. Hence the search volume / allintitle < 25% formula.
Use your brain, if you have a KGR keyword and you look at the front page and it is showing all e-commerce sites for that product, then you know that is what people are looking for, google is showing them shopping results because it is in line with the search intent of the user, unless you also have an e-commerce site, move on. If you see search results showing highly RELEVANT pages, or pages answering the search query, even if they are NOT targetting that keyword, then again use your brain and move on.
What you need to do is look at the SERP results and see weak sites or even strong sites that are not providing an answer that is relative to the search term. When you get a keyword like that then you know it is something you can target. This is the case with any KGR or Non-KGR keyword.
Use intuition for search intent, and then analyze the results.
Another thing, always check page 2. Do you see a bunch of websites targetting that keyword or synonym terms? If so then again look further and then make your call.
Conclusion: KGR is an awesome way to short-list keywords with high potential. Don't be a moron, analyze the Search Intent, appearance of synonym terms and then shortlist keywords that you can target.
just my 2 cents!
