Top lamp - holder flop !!

After the predecessor model was broken after a crash, needed a new bulb.
The brightness and duration are super for normal City traffic.
Very practical, the two stages of the luminosity.
But I can only complain about the mount!
I find it unacceptable that you can screw the bracket properly fixed only with a tool (phillips screwdriver) (I get that in any case with pure manual force not out).
Really fixed the bracket never sits however.
When I turn off my bike somewhere, I remove the lamp. This is but only with great effort and back and herruckeln. This then triggers again the holder and you can pick up the tool again.
After 2-3 times will pulling the bracket is shaky with me and if you're unlucky, the holder are when driving on road huckeliger then completely around and the lamp rotates 180 ° down !!
Full annoying!
Tests B + M's not new developments ?? This really Bickbeeren stuff!
Was solved on the previous model better. Luckily I have the old bracket yet. To try whether the new lamp will thus better maintained.
5 stars for the lamp, for the holder !!