UI Effects puff & documentation

Hi all,
Just playing with effects in UI 1.5.1 and I noticed that using
effect("#puff", "puff", { times: 7 });
that times makes no difference to the effect, anyone else notice this?
Also, how up to date is the UI/Effects documentation:
http://docs.jquery.com/UI/Effects
are these still the only effects that can be used on show/hide/toggle
Blind , Clip, Drop, Explode, Fold, Puff, Slide