Oh I have…. in fact one of them was my mate Ant, he was on his DMR with 120 forks down cwm carn, he was at the front of the group! seen quite a few down there flying on a HT, but they were very skilled unlike a lot of the 8" FS riders just ploughing through and letting the bike do the work
its about smooth riding and using your body more than relying on the bike. Im not saying it is better etc etc and as you know I have had DH bikes, me personally I could not keep up with a FS as I dont have the skill, and I would only ever be fast on a full DH bike as it makes up for my lack of skill so can plow through stuff! but a good rider on a HT can keep up with a FS.. just take a look at a lot of 4x riders, very smooth, very fast and pull huge jumps.. it does take a skilled rider though
Anyhow each to their own, i think every bike has its place and all bikes can do any job, some better than others… FS you pay the price upfront and for maintenance, HT you have lower costs, they both do the job; some like one and not the other, and vice versa, but they are both bikes at the end of the day.. you choose what you like