[Closed] Mudguard mounts on carbon bikes

Just fitted the Cube specific ones to my Cube. Didn't go particularly well but the results are promising (how hard is it to put the right length bolts in the box?).

I screwed brackets to the bosses in the frame that come rearwards out of the dropout area, rather than sideways like the traditional eyelets. So I'm wondering - are those bosses now a new standard? Or am I limited to re-using the brackets that came from Cube if I want to change guards?