My guess is that thing doesn't pass moisture for beans. We talking about you just bumming around the resort here? I'd definitely try and find a better mid-layer before shelling out hundreds of dollars on a gore-tex jacket, or just not wear so many layers. This is one of those times where backcountry or REI would be super useful since you could return the item if you still sweat up a storm.
I rode few times this year when it was really cold(17F with windchill of 3F) and I was still wet afterwards. Problem is if I don't wear a mid layer, it's too cold because my outer shell is just a shell without any insulation.
Any suggestions on a good mid-layer that breaths well?