Max tow,
Max landing at CGH 35L / 17R is limited my MLW on both cases (wet and dry), acording to the specific landing analisys. I presume that engeneering uses grooving / no grooving for that (I persoly know TAM's director of engeneering and he is a very serious guy when safety is an issue). About tankering: Yes, TAM uses that policy, but not always (canot recall if POA is used for that). Can tell for sure that SDU, BEL, SLZ, MIA and GIG are used for tankering.