Was able to successfully climb Adams Glacier route July 9 - was thankful for identifiable boot path up.  Probably most intense glacier climb for me.  I too wondered about the steepness, my climb partner said 45 degrees but felt like more at times to me, was very committing in my opinion - was thankful for my tools and relied on them heavily.  This was the first "real" steep climb I have attempted, felt like the real deal.