I have to jump in here despite the fact that I know what will probably transpire. My experiences are based on my own "karma" which is notoriusly plagued with, "Wow, I never saw that before", comments from others.
I have both the Graham and Wally protractors. I have yet to use my Wally tool (TT set-up burn out) so I cannot say for sure if it is better/easier. But what I can say is why I bought it in the first place. I'm sure to hear from Bob on this but I can only say what I found. I was all for the Graham tool and used it often. But I found a couple things that I did not like. The first was the fact that it was important to put support at the rear of the tonearm when it was in the protractor. If the arm was not secure and level the settings were different. I used a small level atop the armwand to get it level. The manual made no mention of this as far as I remember. Also, I had the chance to use three separate protractor units at the same time and they were never the same. Two were close but one was clearly different, the lines were slightly skewed. I ended up keeping the unit that seemed the best. I was very shocked and disappointed that I found such differences between the protractors. I was really tempted at the time to send it back and ask why this one was so different.
Also, my manual clearly states "The rotating clear plastic alignment target plate rests on the stylus tip, exerting a force of about 2.0 grams, thereby placing the cantilever in its dynamic, opertaing position." Bob, when did this change to 1.25 g.?