Shim is in, I didn't start it until yesterday at about 11 am yesterday, all went well and the car was back down within about 20 mins, took it out for a drive, gears feel a lot tighter and selection when cold isn't as brutal lol, whining is gone whilst engine braking, until you pop it in reverse but that's to be expected, really pleased with the result and would recommend it to anyone! Cheers guys!