In reply to remus and James:
Cheers chaps. I'm writing up a review of the Quantics currently, Scarpa UK seem to be suggesting they are a bit of mid-grade all-rounder kind of shoe, and in the video about them that UKC's Rob G did with Glyn from Scarpa last year, they talk about the shoe being good for Sev to E3, and have some discussion about while the heel being OK, it's not really a shoe for people doing lots of hardcore heel hooking. So I was sort of amused in the video that Scarpa immediately show the two climbers (who I'm sure are both really good climbers and climb that stylishly in all sorts of shoes) doing what to me looks like really hard and techy heel hooks in the Quantic!
I occasionally counter balance with heel when, say, clipping on my 6as - and have found the Quantic heel perfectly good for that, but I thought from the vid the climbers show that if you're good enough the shoes will get you up some pretty hard routes!
Post edited at 13:17