Yes, to some extent...but then it falls right along the lines of what BF was stating....the cam and idler wheel need to be of equal diameter...and close to equal geometry in order for straight nock travel to be achieved.

Mathews was the first, that I can think of, to utilize the large idler with a post feed single cam. Several companies followed suit.

I would think that one could guess that since the cam needs to have more of a "rounded" shape in order to be of the same size and geometry of the idler wheel then a smooth draw might be the result.....but not in all cases.