Nothing, but nothing, beats the reliability of Flicklocks----I've tried every conceivable alternative over many seasons. experiencing jamming or slippage and sometimes both on the same pole. At least in the realm of adjustable poles, for me, reliability trumps weight. This may be more true for some of us taller types of say 170 Lbs. or more. I suspect we exert a lot more force on the locking mechanisms. But with Flicklocks, never a field failure, Summer or Winter----easily cleaned---and no lost screws, a complaint I heard applying to an earlier generation of Flicklocks. Their only downside is weight---however, this may be changing. In Britain, Brasher is going to introduce an all carbon pole w/ a Flicklock style adjustment mechanism at a weigh of about 5 1/2 oz. a pole. See the Outdoors Magic site or my earlier post on this subject.
On backpacks of a more trail oriented nature where I like a trekking pole (or poles) in hand and adjustability is not a concern, I definitely go for the weight savings and use fixed GG Light Trek poles.
For me, the verdict is still out on the Ti Goat Poles--the current weight champion among adjustable trekking poles. I'd love to hear field reports of it's reliability. Not only as an adjustable pole but if it is stiff enough to serve as reliable poles for Tarp pitching.
A.---you might be pleasently surprised to find the latest Flicklocks easier to open w/ thumb only