I bought an 09 TE510 a few weeks ago to replace my 07 TE610. The more I ride the bike the more I like it - although work commitments have gotten in the way of riding. I am a similar size to you, at 6'3" and 210lbs. The bike's ergos suit me pretty well, but I did need bar raisers.
My dealer in Queanbeyan, NSW is very helpful and has a great (husky riding) mechanic. They recommended that I use high octane fuel. I usually use Caltex Vortex 98 and have experienced nothing but smooth and amazing power and
torque. The engine is currently idling at around 1800 but it only has done 200km.
I picked up a B&B aluminium guard for the exhaust and it works well. I also have their bash plate and radiator guards. They make quality gear that fits well and looks good. I also changed to a 14 tooth front sprocket which has improved the length of the close range 510 gearing. The only issue I have with the bike is the small tank. I don't want an IMS tank so I live in hope that Husqvarna will rectify that problem. For the time being, I will have to carry fuel on longer rides.
The only thing I need to do now is take your advice and get out and ride.