Lower your tire pressure (use fatter tires if needed), and keep your arms flexed at the elbows instead of locking them straight, is excellent advice. You don't need a grip of death if the rest of your body can cushion itself.
I couldn't keep my arms flexed at the elbows, comfortably, until I raised my stem (even though I can touch my toes when standing up). If you scrunch uncomfortably far forward in order to keep your elbows relaxed, maybe you need a taller stem.