Two suggestions. If it feels like it could use some loosening, take it into the shower with you and do a few deep knee bends or whatever to stretch those areas.
Second, you're spot on with the UA. That's what I started with and it helped. The ideal, I have discovered, are the undersuits you can buy. I've got an RS Taichi one but the brand probably isn't relevant. They make getting into a one-piece bearable on those crazy hot days at the track.
Rubber side up!
Oh, and congrats on the right fit
Dragging knee is for the track, and dragging tail is for the lot. --Kane Friesen
When you're in a car, you're watching a movie; when you're on a bike, you're in the movie. --Robert Pirsig
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