No one said we all have to agree on everything. In fact, that would be rather boring. I encourage everyone to disagree on something today!
Anyway, the chart is useful. It's easy to read, and it lends itself to helping understand theory better than the circle of 5ths. But for transposing, it's missing 5 keys, so it's not the best tool for that.
One more note... \Yyou don't want me on lead. I'll play all the rhythm you want, or bass. I'm pretty good for a turnaround or fill, but genuine lead players can go on and on and on, and I can just go on, and then I get tired.
Someday we'll win this thing...www.aclosesecond.com