| The answer to this depends on what type of setup you have, but since you talk about 'control' cables and 'buss' cables it sounds like a cam-and-a -half. If so, you need not worry about the relative cable tension. You can change the length of each cable separately but the tension is whatever it is, and whatever it is is fine. The same answer goes for conventional twin and solo cams, but not for 3-track 'X' cams where the tension of each of the 4 cables can be adjusted independently, and is important.
But it is important is to have the top cam as straight as possible. Provided you use, and have always used, a floating yoke this shouldn't be a problem, but if you use a fixed yoke (ie one cable with a 'Y' split) and the cam leans in one direction or another, you can improve matters by twisting up the appropriate side of the 'Y'. |