In reply to A Longleat Boulderer:
> V3/V4 as the crux on an 8a? I'm not sure which lines you've been climbing James but you're looking at at V6-8 on your average 8a crux. V10 does seem a little steep for 8a though I'll admit.
Interesting to compare boulder and route difficulties.
I've climbed quite a lot at Hueco Tanks, the home of the V grade. I remember V4 as never easier than english 6b, and usually pretty hard 6b. So certainly there are plenty of 8as with nothing harder than that on. Having said that V6 or V8 could also be 6b, just longer and more sustained. But I think it would be unusual to find something that hard on an 8a unless it was say 12 foot section that was pretty much the entire substance of the route. But perhaps it all comes down to how much climbing one is prepared to include as a boulder problem section: 10 feet, 15 feet, 20 feet?
Hot Fun Closing at Rubicon is 8a and there's not much more to it than it's V7 boulder problem start. I think an 8a with V8 would be very unusual.
On this particular route I'm wondering if the V10 move/s are the entire difficulty of that particular pitch: straightforward climbing with just one low percentage dyno might equate to 8a/V10 perhaps?