Yup..the old "Santa-Ana cut-back" what a disaster waiting to happen that one.....gonna be a lot noisier when an engine packs it in during that procedure, and someone rolls over on their back and stoves into the community....
in addendum to the comment relating to the GF power decrease...both airports have initial low level-off altitudes..3000', so in an aircraft that is relatively lightly loaded, it reaches this altitude very quickly...most often we are cleared to a higher level before "altitude capturing" at 3000', but not always, and the power comes back quite rapidly to avoid overshooting airspeed limits...hope this sheds some light on the subject...disconcerting for pax..yes, can be...under control....absolutely!!