That's a good question Dirt...I thought they had stopped producing bikes. The Amps were way ahead of their time. It's amazing how many new suspension bikes today use the Amp design.
The downfall was that they were under built and were always breaking down. Too bad. Great bikes....
Going back to using HTs for racing vs FS. Giant timed their riders around the courses using both the HT bikes and their full-suspension bikes and their riders were actually going faster on the full-suspension bikes. Many of the Pros are now using F.S. bikes. The C-dale team uses the Scapel, most of the riders on the Gary Fisher team use the Sugar, the Trek team is using the Fuel, same with the Giant Team and GT, and so on.
In fact, Roland Green won a World Cup race on a Fuel.
I know, I know...now I sounds like a preacher.
The main thing is ride what you're comfortable with and just ride!!! I'll see you on the trail.