I'm big on keeping things simple when I run (stopped running with music long ago because I hated having wires on me and stuff on my ears. That said, i've got a 305 and love it! I'll admit I'm a geek. I really like knowing how far I've gone, how fast…
The doughnut run is so amzing, first you start out eating a doughtnut then run a lap, and you repeat this until you throw up, if you do not complete the 400 in given time, do not eat doughnut in give time, or bitch out. you are out.