I'm officially considering plunking down a little bit of dough for one of these babies in the next upcoming months. I did a search on pros/cons, etc. I want some new info if you are willing. I know that alot of peeps have probs with the 405 due to the bezel sensitivity, then again the 305 is extremely large. Also, will upgrade to the HRM for when I want to use that, so I have that ability with it. Give me the scoop please.