Hi Ibby and Ron,
Dyskinesia started for me the same year I commenced Sinemet.
I found this particularly disappointing as I'd held out taking Sinemet for several years and consequently was unable to function much.
Advice from my neurologist at that time was that as I was relatively young (mid thirties) doing so would delay the onset of dyskinesias, needless to say it didn't.
I found the CR tablets were worse at causing dyskinesia than regular (yellow tablet) and that taking a little Sinemet at more frequent intervals helped too.
Investing in a pill cutter is worthwhile too for more accurate dosing.
The above is what I worked out by trial and error.
I no longer get dyskinesic thanks to DBS so there is a light at the end of the tunnel with that too.
Cheers,
Lee