ok update
i took it back today and they test drove it and confirmed yes there is slip there , but didnt seem to believe me when i stated there is oil getting through and contaminated the friction plate , I know its soaked with gear oil in there i took the starter out and had a look , they are gona have it in next week and pull the gearbox to investigate I would love to be a fly on the wall when they look inside and see it all dripping wet with gear oil