I'm glad to hear you're doing well. My neurologist prescribed ropinirole at 2mg/day for 2 weeks, then 4mg/day for 2 weeks, then 6, 8, 10, etc. up to 16. Now I'm on 12 and it's definitely helping. However, I was first diagnosed only 18 months ago and it seems to me that 16mg/day might be excessive because it would leave me little room to increase the dosage as the effects gradually wore off. Then again, maybe taking 16mg/day, the effects won't wear off for a long time; that is, maybe 8 a day would be effective for 2 years, 12 a day for 2 more and 16 a day for 2 more, making a total of 6 years effectivity. The question then is, would taking 16 a day from the start also give 6 years of effectivity? No one seems to know, though I think the rule of thumb is to take the minimum amount that satisfactorily improves your symptoms.
I thought about this for a while and, being an analytical kind of guy, wrote a web page describing a test that might help answer this question: http://visca.com/parkinson/ropinirole.html
At any rate, here's wishing you all the best!