Dyskinesias starting were a real concern to me before I started on Sinemet and so I held out.... in retrospect far too long before I started on it.
There was a lot of everday things I couldn't do but once I started on Sinemet my movement was much better.
In the early stages of P.D. Stan if you can go without I'd say do so however a little Sinemet to help you move won't hurt if you think you move better on it.
I'm a great believer in PWP being "captain of their own ship" so perhaps just experiment with a small amount and if it brings relief stick to it. If it doesn't relieve your parkinsons symptoms increase the dose.
Maybe buy a pill cutter and try 50mg at a time or even as little as 25mg if you haven't started on it?
It didn't take long for dyskinesias to start once I commenced on Sinemet but I've heard of others who don't have dyskinesias for a few years once starting it.
DBS a few years ago got rid of the dyskinesias, sinemet and offs so there is light at the end of the tunnel.
Cheers,
Lee