Holleton,we have run both and a 36ft front on a R60,R62 should be roughlly equall to the l2s in most conditions.You have to take into account what your cost per acre is with the two l2s (fuel,spare parts,labour,maintentence) against the one.Here in our area (DAlBY, QlD AUST.) we will be lucky to do 10 per cent of our normal harvest. john