I've had 3 of them in gooey gluey, they are great tyres but I'm sure if you take yours off and look you will see the cracks I'm on about. Theres loads of protection still left of course but over time the chance of you landing exactly on a crack increases with the number of cracks.
Had hopes for the Conti RQ 2.2 but with no Apex and judging from Tartys handy tyre guide it shows that, compared with the 2.4, just the width has been decreased, instead of the entire profile being scaled down, surely making it even more unstable.
I agree anything lighter than 800 grams just isn't suitable for general trials use but the possibility of making a really good 900 gram tyre for the lazier amongst us hasn't been realised yet. I don't always want to drag a Der Kaiser around when I'm messing about near my house.