I don't think the difference would be that much between the Q5 and R2. I have the Q5 and the throw is amazing. I don't have a light meter but in my eyes it seems to out throw my DBS with a R2 driven at 1.2 amp. I am still puzzled at why my A9 seems to out throw the DBS especially given that the DBS has a larger,deeper reflector and also driven harder. Now I just use the nailbender 2.8 xml dropin in my DBS and thats my favorite light because of the combination of throw and spill. Back to you choosing the A9, where are you planning to buy it? I have a friend who wants an A9 after seeing mines but I don't know where to buy it anymore. I just don't want to buy a fake one. Since I couldn't find where to buy a genuine A9, I was also thinking about getting the lumintop td15 with the xpg R5 in it. The throw is a bit less then the A9 but not that far behind and it has more lumens.
