I can see someone wanting a senko to fall flat, but is it not the erratic
action of the fluke and other soft jerks that draw more strikes? The slight
spiral, nose dive, turn-up, backward tail dive, etc., that gives it the look
of dying prey.

I personally twitch them, pause (where during the pause they may suspend and
then do a nose or tail dive or they may glide in a spiral, etc.) My
favorite is Mann's Shadow Minnow (pearl white/black back) using a 4/0 hook,
20-pound mono or Fluorocarbon in clearer water, and a 6'6" medium, fast
rod. Rarely to I let them sink deeper than 9-feet, even in gin clear water.
Typically I work them just above the weeds and may let them settle just into
the seed tops before I twitch it into action.

--
Craig Baugher