Shift light, tach, by ear, rev limiter; what's your choice

Shift by tach, has a shift light in it I think, but I don't use it. Rev limiter chip in the 6AL. Love my VDO replay (not recall) tach. Poor mans data logger. Shows rpm in the burnout, launch rpm, and all shift points, and finish line rpm. Come to think of it, I think it has multiple shift light rpms too.