  We introduce a modified detection method for measuring the luminosity of the
tip of the red giant branch (TRGB) by introducing the composite magnitude T = I
- beta [(V-I)_o - 1.50], where beta is the slope of the tip magnitude as a
function of color (or metallicity). The method is specifically designed to
account for known systematics due to metallicity. In doing so, this simple
transformation does away with arbitrary color selections in measuring the tip,
and thereby significantly boosts the population of resolved stars that go into
defining the TRGB distance. Moreover this method coincidentally reduces the
impact of reddening on the true modulus as well as its final uncertainty.
