Originally Posted by Racer Ex

The SRM allows you to hit a button at the start and end of your interval, record and review the data. While you're doing the interval you have an elapsed time, power readings, cadence Etc.

Actually the Ergomo had the best computer head I used. It was why I sold my original SRM and gave it a shot. Great display, big numbers, and a lot of flexibility.

If the Garmin lacks this it's a bit of a hole.

I like the Quarq working with the Rotor crank BTW. That's a nice unit.