On my K8 wee I had the standard screen, a barn door Givi touring and small sports screen. The best option on that was the standard screen and madstad bracket.
On my Glee I have just fitted the Puig touring screen and in the lower position it's great. It does have 12mm spacers on the top bolts and 8mm spacers on the bottom, which came with it. I bought it secondhand off a forum user.