Holden Commodore 2012: VE SV6 ute gear problems

My 2012 VE SV6 Z series manual ute is having trouble with second gear, and has been from new. It is very notchy when going from first to second and hard to engage. It seems to get worse as the engine warms up. The dealer's mechanic admitted there was a problem with engaging second gear when he went for a drive in it. I left it with them to check it out, but when I picked it up I was told it was normal. I can't imagine that every single gearbox in all the VE SV6s out there would have the same trouble with second gear. What are your thoughts?