If you dont plan to take it to a dyno and have it tuned i would recommend the AT. I used a map from Fuel moto for about a week and had nothing but problems. Stalling, popping, slow throttle response, it just wasnt right. Emailed them and told them the issues and they sent me a new map. It didnt run any better. If you look at the fuel tables that fuel moto sends they are the same for both cylinders. Ive never seen a good map run the same exact tune front and rear cylinders before. Called Rylan Vos and sent him the map i was using and he said the map was 99% of my problems. He sent me a map to get me through till i got my bike to him to do the cam swap. The map he sent me was a night and day difference from what fuel moto sent me.
The fuel moto map had 10* timing put in on the 0% throttle from 500 rpm all the way to redline. Not sure if this is why it ran like crap but i can tell you i had it stall on me a few times out of the blue and it would hiccup back through the intake.
If you dont plan on a dyno tune then yes i would recommend the AT. Most people just put in 13.5 in all the fuel cells and have great results. If your fuel moto map is crap like mine was let me know and i can email you a much better map that Rylan sent me.
2006 Extreme vegas Jackpot
05 hammer drag map
RPW Swept pipes
2013 red blacked out cross country
High, low HID kit
Ness Rad III mirrors
Noemtz Thunder Monster exhaust
Lloydz air filter
VM1 Cams done by Rylan @ The Vic Shop
lloydz timing wheel