This morning I received delivery of my Concept2 PM4 head unit. This accepts a Concept2 LogCard (which the previous PM2+ didn't) which should enable me to track usage a bit better (when I find my Concept2 LogCard that is!).

It also comes with a Suunto heart rate monitor that straps around your chest. I really must organise some regular (weekly or fortnightly) all-out session on the Concept2 so we can start to see if there is any progress in the cardio area once the cycle is in motion.