Hi I dont know about the flr 2 but i know my flr 1 does not like reversing with the caravan on the back i think they are quite high geared in reverse and so a bit more clutch slip is evident
there has been a problem on fl2 s of your age but most complain of clutch slip in 3rd between 2-3000 revs, check out clutch slip threads on freel2 .com
The clutch is the Achilles Heel on all manual Freelanders. Do you slip the clutch while backing in with your foot on the gas?
Have you tried letting the clutch up gently but fully without touching the accelerator and letting the anti-stall do it's work?