I second all of the above. I use the Ace straightener, and it's great. Expect it to take a little while to get a feel for how much pressure to apply, and where.
A spin tester is great, a perfectly flat surface works too. Work the high spots... one at a time.
Patience is a necessity.
One thing to add about installing points: after cleaning them, gluing them on, and checking them for spinning true, be sure to dip the point in cool water, or run it under the tap, while you know the point is still fully set. The hot melt will push the point out while it's still cooling if you don't.