If getting the bar angle at the right position is the main problem, surely marking the bar by putting a sellotape on the stem/bar and mark it instead would be easier?
by the time you arrived, just match the line on the stem/bar to get the position perfect.
If getting the bar angle at the right position is the main problem, surely marking the bar by putting a sellotape on the stem/bar and mark it instead would be easier?
by the time you arrived, just match the line on the stem/bar to get the position perfect.