Its probably a little early to adopt for HLT - but if the prices come down I like where the future is headed: http://store.swift-nav.com/

I'd like to clarify what you mean when you say it takes time to achieve accuracy, does this mean turning the GPS on for a period of time to "warm up" before setting POI (which I do) or to stay at each POI for a period of time before setting them? One of the challenges I believe I am facing...

Hi Harry, I use the laptimer for autocross. I set trigger points in the morning when walking the course. Unfortunately by the time I run the course the GPS drift can be so high that all of the trigger points no longer work. In addition, for long waits between runs the drift can be significant. Would...