Not all HT are created equal.
I currently have 3 HT and one FS bike, and each one of the HT is different than the others.
My favorite HT has a Ti frame, plus tires, and 130mm fork. I'm not a very fast descender but most of my descending PR's are on that bike.
One day I might switch my current FS bike to a longer travel bike, but I don't see the need for it at this point.
I enjoy a good FS bike on the downs, but I hate the bobbing and the extra weight the rest of the ride.
My current FS bike (Scott Sparks RC) has a remotely lockout shock. This is a nice feature (as long as I don't forget to unlock it going downhill) that eliminate the bobbing.
At 24 lbs is it probably as light as an FS bike can get. That being said I ride it less then all the others.
Parractily you can design a HT that will go down fast, and you build an FS that climbs well. The amount of travel is not as important is the Geo.