They all 'Grind' if you just whack them into reverse, there is no synchromesh on this gear causing the grind as the gears slow down. I had a broken gear cable replaced, fitted a Mike Satur bell crank, new slave, new master cylinder and a ''Lotus'' slave stiffening bracket all of which have made selecting reverse almost noiseless, i also changed the gearbox oil with Castrol Synthtrans 75w90 which is slightly thicker than MTF 94. this was changed at 60,000 miles rather than the recommended 96,000 miles!!