+1000.... These light threads always devolve into I know more than you.. When the OP questions never get answered..

I normally run 2 - p7 lights on my bars with a Q5 on the helmet.. If you aim your lights properly there is not an issue of blinding drivers.. I have read plenty of posts from riders that are aiming there lights 50-100 feet in front of them..If you do this, you will be blinding drivers.. I do not, I prefer that the lights I use be useful to me so I can ride fast at night..