High quality directional data are needed, with regular updates. Solar cycle dependence needs to be studied further. The secular variation of the magnetic field should be incorporated in the models. Agreement should be reached on which coordinate system to use for the models. Better magnetic field models are needed.
Electric fields are important in theortical modelling.
The induction electric field and the time variation of the magnetic field should be self-consistent. Correlation at different local times and L values. Correlation of electron flux at low L values with solar wind velocity.