FWIW, I broke mine in with 30%, I heard some guys at my LHS (Hobby People) saying I should use 20% or special break in fuel with high oil content, but I had no issue with Werks Racing 30% just make sure you don't lean it out and overheat it and you should be fine. But then again those guys also said I can't run 30% at all and also tried to sell me 80wt shock oil and still won't believe me 20wt. is stock on a truck.
Also you're going to want a 1amp (1000mah) or higher battery pack for your receiver with a "JST" 2-pin red connector, and I wouldn't recommend running the stock "AA" batteries for your receiver longer then you have to.
Good luck!
Hey Simon can you fit a 6-cell in there? And what's a good brand that fits in the GST?