I've been happy with a flick-lock model from Black Diamond.
I got the three piece model so they easily pack into luggage.
No shock absorber feature on mine so I can't comment on that option.
+1 on this. I got the Black Diamond Carbon Corks. The one feature you should absolutely get is the flick lock, the screw/barrel locks suck. Carbon fiber and cork handles are are just nice additions, I've had barrel locks that have froze up and I couldn't collapse in a situation when I really needed them to. I saw the shock absorber models and ergo grip handles, for me, it was just more weight and cost. BD or Leki both make good stuff, if you can, handle several before you buy and balance cost with feel.