thirtysomething,
there is no such thing as a shortfield procedure on big airliners.
You are always expected to put it on the touchdown markers at Vref.
Of course, landing on a 4000m RWY at Sealevel gives you some distance to play with, and I tend to prolong the flare to achieve a smoother touchdown, but that is actually not in the book (meaning no SOP).
You never fly slower because of a shortfield, you should always be on your precalculated speed. My speedcontrol will get more focus on short RWY, but I will never fly deliberatly slower (my FO would call a goaround, if I did).
Same is true for contaminated RWYs.
Nic