RPE to logs

You could actually do this in the 'enhanced HR zones'.  Instead of putting in HR zone data per zone, put in the RPE.  That way you can track 'time spent in RPE zones' when we get the graphs up.

???

Of course you wouldnt be able to simultaneously log enhanced HR data and also RPE data.

Correct, and learning the HR to RPE change is the important deal with summer here now.  I started logging HR over the winter which has a totally different relationship to HR now days in the heat.  Graphing HR and RPE would be prettty cool to see the affect heat/summer has.  Just a thought to add it with everything else we have available.