>> "2. The fabric is too breathable. It is great for more strenuous exercise and warmer climates. Because of the breathability issues though, if it is cold and windy or if you are not being active and it is windy, it gets very cold with the jacket on.
I agree with this. My Superfly is colder than my Montane LiteSpeed.
Miguel, Aaron --
I have to agree with Kevin on this one. I use both an ID eVent shell, and a Montane LiteSpeed -- both superb shells fo their intended purposes. But, eVent has much lower air permeability than the Microlight fabric used in the LiteSpeed. eVent is basically impenetrable to anything short of a gale force wind. Plus, eVent is a heavier fabric and as such, flaps less in the wind, causing less "bellows effect" convective heat loss than Microlight. So, all else being equal, an eVent shell is going to be warmer than a Microlight one. (Except perhaps under high exertion where Microlight's higher air permeability is better able to prevent moisture accumulation.)
If you are more chilled standing around in an eVent shell than a Microlight one, I would suggest that it is due to other factors. I'd look at the garment design first: assuming your insulating layer is not being compressed, snug fit = warm and loose fit = cold. I'd also look at areas where air may infiltrate -- waist, neck and wrist openings, zippers, etc.
If you are more chilled standing around in an eVent shell *after* exercise than a less breathable WP/B shell, I suspect that the eVent shell is doing its job and you are experiencing evaporative heat loss from moisture accumulated in your clothing. You can't criticize the fabric for doing its job. A less breathable shell would only retain the moisture longer and create other problems.