In reply to Graeme Hammond:
> my top beta is......
> don't do a mantle as such, get the good sideways finger lock in the centre of the slab, build the right foot up fairly high then place your left foot in the break, put both hands up in a superman position, lean right in and then stand up (dabbing right foot helps), seemed 5b+/c that way, the pulling on the pebbles to gain the gear break are and the moves off the ledge to gain the top seemed harder for me.
> to practice such a move you could probably simulate a similar move on the pebble boulder near the route by trying to standing up on the ramp with no hand holds just leaning in the same way and stepping up.
What you describe sounds like a 'mantel' to me.