Rating: 2 / 5
Not that light, my 140cm version weighs 180g or 6.3oz each - most of the weight is in the heavy handle.
I have the opposite problem. The poles jam in both of the bottom sections. No probs with slipping - can't get the things to collapse for storage anymore.
I took them apart at home (with a LOT of effort) using soapy water in the jammed section. They were cleaned, dried, re-assembled - but the bottom section still jams when extended past 2 inches. so bad I am about to try lubrication ! (I now, this may prevent the twist lock from working, but they are useless right now, and I am ordering TiGoats or GG LightTreks anyway, once I make up my mind between the two).
Post script - the problem was the cylinder on the locking mechanism in each section. I filed each down carefully by hand to half a mil, with wet and dry for finishing to regain the smooth polished surface, taking extreme care to retain the symmetrical shape, and the stock now works perfectly. the diameter was slightly too large.