was given one of these for christmas,does anybody actually helmet
mount them? seems a bit heavy and cumbersome to me!i already have
a vision two on the bars so dont know if i really need this,although
the one seems to have a longer reaching beam.

I think it is far too heavy for a helmet mount really. I use mine for commuting on the bars.

May as well use it, extra lumenzzz.

bar mount the vision 1 and helmet mount the vision 2

i have a fenix l2d for the helmet already but i could
try the two helmet mounted,dont like the idea of trailing
cables from my head though!