CH3MTR4IL5 said..
to be a voice of dissent, if you have the option I would go the 3.6m. Pretty much the only thing you can do wrong learning to para is not having enough fabric and if you have your DW skills dialed then its only going to be used for the pop up and you can carry a little more power.
I certainly agree here! Don't buy too small - rather a little overpowered than the opposite! It also depends on PW type/version/brand - some have bigger wind range than others!
Go for the ones (mostly newer v2 - v3 ) with big wind range.
And not everybody sails in the Gorge or Maui with BIG consistent winds......