Genesis flyer owners

Does anyone run their flyer fixed as I want to buy one and am put off by the chain line issues. Has this been remidied on the newer bikes, if not do the EAI sprockets solve the problem without spacers.

I got mine working today, i used a Surly cog, make sure you get the right size though, i had 3/32 as stardard but i've got a 1/8 now and it works fine.