I have one of those know it all buddies of mine that did some research and through his studies apparently found out that Gunnar's blue blocker is better than any other blue blocker on the market. I was trying to talk him into getting Hoya's Recharge or Nikons SeeCoat Blue Premium coatings. But of course his research is law and what do I know(gotta love these types of people) so anyways was wondering if you guys have any comperative studies that have been done regarding different blue blocking coatings and the effectiveness of them.

Thanks,

Jc17777