  Many examples of gravitational duals exist of theories that are highly
supersymmetric and conformal in the UV yet have the same massless states as
{\cal N}=2,1,0 QCD. We discuss such theories with an explicit UV cutoff and
propose that, by tuning higher dimension operators at the cutoff by hand, the
effects of the extra matter states in the UV may be removed from the IR
physics. We explicitly work in the AdS-Schwartzschild description of QCD_4 and
tune the operator TrF^4 by relaxing the near horizon limit to reproduce the
lattice 0^{++} glueball mass results. We find that to reproduce the lattice
data, the IR and UV cutoffs lie close to each other and there is essentially no
AdS-like period between them. The improved geometry gives a better match to the
lattice data for 0^{-+} glueball masses.
