In reply to
> (In reply to AJM)
> A 7b+ slab is still going to feel very very thin no matter how good you are
out of the context of this particular route, i'm not 100% sure.
at least here on the continent, the sport grade of some slab climbs has little to do with their "securensess".
you can find some steep slabs with small sharp features for hands and feet that end up being a matter of technique and finger strenght, and are awarded a relatively high grade (usually somewhere in the 7's) because the average 6-grade climber doesn't have that technique and those fingers...
...but if you are above the requirements and get them really wired, they can feel quite "secure" on the actual lead, and if you are really strong in your fingers you can even get away with some small wobble.
then you have straightforward smear climbs that just require you to trust your sticky rubber and step on it, so they are theoretically open to many, even beginners, and they get a 6-something.
(mind it's not a rule, usually slab 7's are more unsecure than slab 6's, just not as often as you might expect)