I meant the performance of the wing, not the OP Vref (sorry)..the sharklets make it very, very slick compared to the A320 with the typical winglets....the pilots noted it was far more difficult to slow it down.
EDIT:
Does Vapp differ with sharlet vs non-sharklets? It is calc'd by the FMGCS, (Vls +5), but is it the same?
Plus, as far as I an am aware, the major savings made by winglets are in high AofA situations like climb and approach, less so in cruise.
Opposite is true...
Edit: OT..just wondering..the drivers said they were not briefed on the difference, and didnt know they had a sharklet plane until they got there and did a visual. Is this typical? They even mentioned they had a tough time slowing it down, I noted lots of speed brake after config 1, and then almost right to full flaps, pretty far out...(good thing there were 10 pax instead of a full load...)