Wes, my friend has the same clutch as you, and he adjusts his the same way bansh-eman does it.
On my cub, I have the spring tension basket with stock inner hub, stock pressure plate, stock springs, and a cascade clutch. I adjust it the same way, with one exception: I have to put a little pressure on the arm and it is perfect.
The only time the case arrows worked for me was when I had a completely stock clutch...