hydraulic roller lifters issues

I just got the cam back from the machine shop. Had the cam re-ground, 0.035 taken off the base circle. Tried it in the engine with the roller lifters and no more problem with the oil grove peeking out of the bore. I had it done at Interior Cam in Salmon Arm BC, the cam looks really good. I was surprised to find out it was bent 0.005 and the lobes were not all the same, he said there was a difference of 0.002 - 0.004 between them This is brand new Comp Cam. He said it is pretty common for a new cam to NOT be perfect but they are all the same now and cam has also been straightened.
Just as an FYI, I have a pair of roller liters from Hughes that I used just to do the fit up and I will not be using so if anyone is thinking of going to a roller cam and wants to try a roller lifter before buying, drop me a line. They are the same for a big or small block
My next step is to degree the cam. It looks like things are finally coming together (fingers crossed)
Will I need to change out the gear on he oil pump shaft because I went from a hyd flat tappet to a hyd roller cam?