I use the intake center line method, because I don't really care where the valve is at .050 and it can be off a bit. I want to know where max lift is relative to the piston after TDC.
So, per your cam card, the ICL should be 106* ATDC. It should be close at .050 but lifter bank angles, lobe taper and things like that can affect the .050 lift number.