I put 6 piston HawgHalters on my SEEG with LRB pads and floating Renegade rotors (matched my Renegade wheels). Stopping power was the best I have ever experienced on a touring bike, easier to modulate than my new SERG by far. I kept them when I traded the bike and sold them to a buddy, he was so impressed that before he got home when we installed them he decided to buy the rear one as well.
I didn't consider the Brembo's because they are a "Universal" deal and require an adapter to fit the Harley leg. I don't do "adapter kits" when I am spending major cash it has to bolt on and fit, plus that the Brembo booth guy at Las Vegas bikefest when I was looking at the different set-ups from different manufacturers was a -rick. Honestly though the LRB pads are a big part of the improvement. I fully intend to change my new bike to them soon.