  Ratios of azimuthal angle correlations for Mueller-Navelet jets are compared
in QCD and N = 4 SYM. Such observables are well suited to study the effects of
Moebius invariance in the Regge limit. The role of the renormalization
prescription and the size of conformal contributions is addressed, showing that
the BLM procedure best reproduces the N = 4 SYM results.
