You are fairly safe if you stay away from the rare references. I would not risk paying big money for any team now. A lot of fakes can be spotted but there are those where you can never be 100% certain.Spot on. I would love to have a collection of classic HW teams but it's an absolute nightmare with so many fakes out there so I stay well clear. I know LWs aren't everyone's favourites but a machine printed kit us far harder to fake.Subbuteo is now like most of the art galleries around the world full of fakes. I wonder what percentage of rare teams in collections are fakes. I've read that a lot of galleries know they have fakes but tend not to publicise it, a bit like Subbuteo collectors I suspect.
I've been a bit choosy and tried to only purchase nice, clean, genuine teams. But, there's more than likely a few that's not 100%. Hopefully not too many, though.