Well took one out got it for 4 days then they going to lend me a speedmaster dont think much differenceSo the America seems ok certainly doesnt have the torque of the Tbird but it seems quite capable very quick for what they are and i thought more comfy and better riding position than the Tbird,the missus didnt like it (but im trying to get her to do her test)a lot of people say tuning them makes a big difference,still not sure the Tbird is better quality but then it costs lots more and i have to weigh up long term which am i gonna be happier with,swinging towards the america comfort wise and more agile.lighter to handle,i keep you all posted.