Thanks Scotty,
I read "At this point you should mark your bar (where?) and cut the end off." (Spyder Handlebar Risers)
and "Slide riser onto the stock bar and mark the bar at the proper length." (Spyder Easy Risers)
instruction sheets several times and could not determine what the 'proper length' was. The assumption is "flush" but I learned a long time ago to assume nothing. ESI's instructions should be a bit more precise.