I know a very old thread but, I did my plugs yesterday and WOW! They were white tipped with a tons of build up. I am at the firehouse today and tomorrow, going to get pics ASAP. My set up was/is. I started with Stock V-Mods, Topless, K&N, with Gills box. Then swapped to 16g and he gave me new settings. Something is off, I thought the bike was running fine, but with the ride in today much more responsive and seemed to have more power and pull at lower RPMs. The bike has 11,470 for mileage, and first time I have done the plugs, not sure if dealer has done them on any of the prior service. I gave Gill a call yesterday but got voice mail. I need to get the pics up, I don't think I have seen plugs this bad.