On Thursday Ped and I did Howlin Ridge. Got up early to avoid the worse of the heat but still got baked on the walk in. Racked up but didn't use rope or climbing shoes. It felt more like a scramble than a climb thought there was a few tricky sections.
Route finding is pretty easy there is pretty much a path. Took about 2hr15 including a lot of photoshoots en route.
Having done it in such beautiful conditions it seems like it would be shame to do it in shitty weather.
As for the grade, I would say Diff rather than VDiff.
For climbers it's a scramble. For scramblers it's a climb.