What drills should I use?

[Der_Ryan_M]

Should I only use these over and over again or should I switch to other drills to improve other white skills. And if so what other drills should I use?

You always use a certain drill 6x until the attributes of the drill reach an average, e.g. 140% average (which is probably good if you have 800 greens). Then you select the next drill.
Try to focus on the white skills of course.