SkS shockboards on both my bikes, just fantastic. Make crud front guards (and all other downtube guards) look like the half-assed half-effort they've always been.
Lots of rear guards that work, the last of the 3-bolt fit Crudcatcher rears was very good, the new one's a horrible bit of design but if you get it to work it's good (so overdependant on friction and interference fits, and the whole thing's held together with a splined bolt mounted into soft plastic, just plain stupid- either they didn't test it or they replaced all their engineers with artists) Still, the mudguard blade itself is very good so it's worth persevering.
"SKS shockboards fall off, the bung doesn't stay in, and the quick remove teeth wear out in a few weeks because the guard wibbles about."
Not had any of those problems. Well, I've knocked the guard off a few times but never had it fall off once. The bungs have never shifted on any of the 3 bikes I've fitted them to, sure you have the right bungs fitted? The guard shouldn't really wobble either- though I did add a wee bit of silicon foam to mine to protect the fork crown and to keep it all nicely in place.
