Arvo Graham...
The method I used to raise my bars was altogether different and with hindsight (was 15 years ago), I think the method illustrated by '
Bikebear' is better way to go. (I note the 'unbrako' hex head bolts.
)
What I did to get the eventual ideal height for me was to remove the raisers completely and then place pieces of wood of varying thickness between the lower aspect of the handle bar and the top of the triple clamp and gaffer taped them into place (bike on the centre stand).
Then over the next few days I would go out and sit on the bike periodically taken note of where the mirrors were and the top of the windscreen (mine is bog standard), in relation to my head / eyes. I eventually settled for 35mm added height.
I to had to re-route the brake master cylinder to prevent the hose stretching...I achieved this by simply going the other side of the right stanchion (ABS variant).
Yes I get more wind noise but no buffering...ear plugs solve this.
I have not noticed any difference of air flow over my hands...still in the slipstream of the mirror covers.
Cheers Dick :)