..Doesn't that show what modern bikes are capable of rather than whether they improve your skills?
I can't really comment as I've only ever ridden a fully rigid bike. But what I do know is that it demands intense attention on downhills and that I keep myself loose to float over the gnarly stuff; Being old and knackered, if I had a modern sus bike I'd most certainly sit my arse down more and let the bike do the work, so I'm sure it's made me a better rider. The point is you have to be attentitive on a rigid at times when you can be lazy (or think you can) on a sus.
I can't really comment as I've only ever ridden a fully rigid bike. But what I do know is that it demands intense attention on downhills and that I keep myself loose to float over the gnarly stuff; Being old and knackered, if I had a modern sus bike I'd most certainly sit my arse down more and let the bike do the work, so I'm sure it's made me a better rider. The point is you have to be attentitive on a rigid at times when you can be lazy (or think you can) on a sus.