Lowell just tuned my build without meth first, I guess you could call it a "base" tune. Evolution did the same on a previous setup, so perhaps I am missing your point. Anyway, the "final" tune with meth will get under way once the dyno is back up. We added an extra bung to run two nozzles depending on how much meth is actually required to achieve my power goals.
But back to the topic: quoting Lowell Foo
"With the Comp 100's I was shifting at 77-7800rpm and the HKS 272s work best shifted at 8500." He also noted the lack below 7000. When I spoke with Lowell I got the impression that meth can add some torque, if this is true and the poster isn't planning on running meth, it might affect the cams that we end up recommending.
