Some very good ideas already. When I first got my 305 I set all 3 screens up and gave it a lot of thought. However, in practice I found that:
1. The "current pace" is very inaccurate.
2. I had a difficult time taking in all that data, let alone toggle between the screens.
3. The "average pace" is pretty accurate, however displaying it became a hindrance in my training as it forced me to run faster then I should. However, this is a personality thing and you may not be as competitive as I am.
4. Displaying the distance also tempted me to run longer then I should have.
So in order to listen to my body better I made the following changes:
I run by HR rather then by pace, and by time rather then distance. The two things I display is
elapsed time and HR. I use auto lap at every mile, and at the time the lap is taken it displays the elapsed time for that lap. Since it's one mile, elapsed time = pace. It's that simple. (Having said that I sometimes take a manual lap if I have to change the intensity of the run in the middle of a lap, eg.: 10min w/u, then tempo. I warm up at a bit over 10:00 min/mile usually, so I am in my second lap when I need to speed up to tempo pace. So I press the lap button and the auto lap will take the mile splits from there.) I can guesstimate the distance from the # of laps and paces, but I really don't find out how long I ran till I download the data. I am more relaxed this way during my runs. Also, I don't toggle between screens. When I run I run and don't play around with my equipment...
About the race start issue, others already explained it well. So I just confirm: chiptimed -> push button at the startline; no timing chip -> push button when the gun sounds.
Congratulations on your purchase, and whatever way you will use it, make sure it works best for you.
j
http://This message has been edited by jura (edited Mar-31-2007).