I use the triangular corner to centre magnets, the corner edge ones are in the middle, and I use the dark blue GES thingies, and the white tension nuts are flush( I believe that this is setting one).
Cubes are for the most part in great condition. The only thing is that the GTS2 M has some slight chips in the stickers and the on the Huanglong I swapped out the green side for a Limette Green. PM me for photos. Price is negotiable.