We present VLT-ISAAC spectra of unprecedented S/N and resolution for the H/3 region in a sample of n = 17 quasars in the range z = 0.8-2.5. The data represent our first attempt to test source occupation and line properties for the Eigenvector I parameter space that was defined using a.sample of sources with z < 0.8. We find no strong luminosity/redshift dependent effects with the possible exception of an increase in the minimum broad line profile width from 1000 to 3000 km s(-1) between M(B) approximate to -20 and -28.