Fresh 360 breaking up at low RPM'S.

dot to dot is not the same as degreeing the cam
it presupposed there were no mistakes made in the production process of the cam

and if that is true, your golden, but if the centerline of the cam is not true, your dot to dot timing will be off as well

using a degree wheel would allow you to install the cam regardless of centerline trueness
(but it sounds like your aware of that)