hi all, total newby here, got my first decent rc, i wanted to crawl so i got the summit, luv it so far, totally stock, got a set of 5000mah lipo thats the only mod so far. i pretty much only want to crawl and go slow, what mods would best suite that style of driving, would a brushless benifit me at this point? longer run times intersts me, i am also looking at some more lipo batteries, would u suggest a higher voltage single or stick with the 2 lower voltage? like i mentioned not intersted in speed always in low range so if a single gives decent runtime in low i would be all over that. thanx for any tips, luv this toy