Speaking of Treynor, his bio needs to be updated because it says "Brother, Roice, plays football at Washington".
Anyone know for certain whether Jackson Kollock will be here in the Spring?

What exercise is a 'hang'?

It's an olympic lift where you essentially deadlift the bar, flip it up into your hands and catch it in a front squat position. Kind of hard to describe. If you look up a video of "hang clean" vs. "power clean" it's easier to see. QBs don't usually hang clean that kind of weight...

How much do these lifts help over standard lifts considering the possible added risks?

Done with proper form and technique the risks are quite low. Lifts like cleans are a good indicator of explosive-ness, but that alone won't make you a good player. Still an impressive feat, though