It's not that mine hasn't adheard Lex, but the glue shows through opaque as the transfer is mostly transparant. I learnt the shiny varnish trick when it was too late.......Same thing applies to the Norton transfers. 😬
As for the headstock ball bearings races,. You put just a small amount of load on them with the top clip and once the pinch bolt is tightened on the steering stem, they wont go anywhere and will probaly last a lifetime without further attention. Ron