I have cut literally thousands of ft of ply building boats and a lot of
it has been curves. It is important to set your blade depth correctly.
I always use saw horses 'cause I hate getting on my knees anymore.
Always support both sides of your cut and you will do much better.
MOFWIW
Pat O'Donald
William R. Watt wrote:
snip.
I would never try to cut a curve with a circular saw.
try it. you'll like it. 
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