DaisyI said:Zuni, maybe your poor luck with palms is that you pruned the tops right off. Palms have only one growth point - prune it off and your palm is gone. Forever.
As I advised before, don't repot a plant you are having a problem with. It just complicates the problem.
First a solution... The only way to get rid of scale is to wipe it off. Alcohol works well and you already have it in your bathroom (or in my case, your kitchen where all sick plants go to die or recover). Scale insects live under a waxy little dome, safe from all pesticides. Loosen them up (with a Q-tip in alcohol) and wipe them off.
On the whole, except for the scale, your palm doesn't look all that bad.