[billlenz]

Seems to me TIPS would be greatly improved if the list of prospective experiments included any activity on the (custom) activity list. Obviously one could call Stationary Bike or Bowflex sessions "Chair Exercises", "Golf" or some other existing category in the TIPS option but the existing list is a bit limited.

The "pair" model is a bit simple for food events not supporting multiple after meal tests but it is still a useful convenience.

The concept is not rocket science - as someone said here "we all do it" but it is useful to set up an experiment and let GB trap the relevant data.