i thought it did - but in hindsight it didnt...
it made things easier ie, quick drop on the remote and awayyyy the lads descending made easier....but i got lazy and ended up using it for everything other than climbing on sections that really didnt require it....almost felt like i was throwing a trials/skills bike down stuff sometimes....i had a few problems with my GD (and the fact it was ugly as hell)....it spoiled two huge rides for me also, when i was in the middle of a 40miler literally half way it packed up....sorted it out and it did the bloody same 3 weeks later on the same ride
...i lost faith after that and sold it!
ive since gone back to proper seatpost and 9/10ths of the ride up the peaks im not having to drop it on sections i would automatically have done so...there are certain areas where it would be deadly not to drop, so i do still do so for them, but they are not miles and miles of descent, usually tricky techincal super steep bits...it takes a few moments do stop and undo QR and stick back up after...
they are a great idea and in certain areas of the world they would be fantastic from start to finish on rides, but for me its a load extra weight, lack of reliability etc that made me go back to a good old alloy one...
if i had 100% faith in them and money no object then id probably get one and keep it to one side for certain rides...but as a constant ride i dont need one....
i do like the look of the rockshox one but hearing so many bad things now about them, i thought that would be the one that ended all reliability issues but clearly not.....