I realize this post is 5 months old but...I ride an '07 RG (Axtell 107, HTCC SE Ported Heads, RRArms, T Man 590 cam, +++++...I decided on the Zippers ThunderMax with the Auto Tune mod. Really nice interface, $$$$, great support from the Zippers tech support. Many base maps & lots of areas to modity. You probably have one by now - if so which one did you go with? The Daytona Twin Tech was also on my short list.