RLS and Ataxia

I have crebellar ataxia and as a result have terrible RLS. I lie in bed at night kicking and wriggling, and the twitching and RLS keeps me awake until 3 or 4am.
I am taking two Pramipixole a night, buit it is not helping much. I am thinking of increasing the dosage, or starting with Gabapentin.
Anyone have any suggestions?