Wrap your pinky under the bar on the same side as your thumb. This will help immensely. Look closely and you can see me doing it. Lord knows Ive got my share of bicep/elbow/forearm issues
thanks man this shit is starting to kill me, i'm nowhere near the level of squatting that you are but even my little piddly 5 plates for 4-5 is giving my hands fits, i tried just holding the bar near my fingertips earlier this week and it helped a lot, no pain in my hands or bicep tendons.