It's hard to answer that, but the lowest dose you could use would be the best bet if you are going to use it. I only plan on running it for the length that I am on the deca and at a low dose which I will taper down off. I am currently on .125mg ED and will be for another week, then I will bump it up to .25mg ED and see how I go on that but probably will not go over .5mg ED. We will see how it goes.
I have not come across many reports where people have had serious withdrawal from Prami (on AAS forums, used at AAS doses so we are talking .25mg upwards of 1.5mg ED not Parkinsons doses which is somewhere around 5mg ED and taken long-term). Whenever people, using it at AAS doses, have reported any withdrawl of some kind it is usually a dip in mood which if you experience could probably be dampened with a taper. Going with that, I think DAWS is only a problem in people using high doses of a DA for extended periods of time.
Parkinsons sufferers for example already have a faulty/degraded dopamine system and after being on say 5mg ED of Prami for such a long time, coming off it will only make sense to experience serious withdrawal... Not only that but I am not sure if Prami prevents further breakdown of the dopamine system (IIRC it educes natural DA oxidative stress by a bit helping slow the progression somewhat but not majorly) but whos to say the patient going through DAWS after being on a Dopamine agonist for 2 years for parkinsons didn't experience further breakdown of the dopamine system in which it was covered by the dopamine agonist?
I can't guarantee this, but IMO opinion and this is my opinion, using prami for a few months at a low dose shouldn't cause any DAWS and at worst you might experience a little depression when you come off. Keeping the dose to the lowest you can use is your safest bet.