Only by using several varieties sandpaper and some loop work I managed to modify the holder so that the Oregon now easily fits on it.
The attachment to the handlebars with cable ties are not the last word. While this has the advantage that the bike mount can be attached to a link of any diameter, but "fix" the word it is not true completely. No matter how determined you zurrt the cable ties, the Oregon is relatively easy to move the handlebars anyway.
Good thing you can buy cheap cable ties ...