When your @specialized_au compression plug distorts your carbon steerer ever so slightly (even at slightly below 9Nm tightening spec), the blades (?) at the top of the plug overhang the steerer ever so slightly, and the @chriskingbuzz GripLock assembly tolerance becomes really REALLY tight, you have to improvise. Careful filing of plug lip and gentle hammering of headset got it all in place eventually. Frustratingly, my QR skewers** were meant for steel dropouts and I did not factor in wider (11mm) carbon dropouts. Having only ~6mm of skewer thread engagement is no bueno, so I reversed everything, reinstalled the previous steel fork, and ordered a set of appropriate-length skewers from the UK. –
** yes, I still roll on quick releases.