The spin-free binary-inspiral parameter-space introduced by Tanaka and Tago
shi to construct a uniformly spaced lattice of post-first-post Newtonian (P
N) templates is shown to work for all first generation interferometric grav
itational wave antennas. This allows us to extend the minimum-redundant car
dinal interpolation techniques of the correlator bank developed by the auth
ors to the highest available order PN templates. The total number of templa
tes to be computed for a minimal match Gamma = 0.97 is reduced by a factor
4, as in the I PN case.