Similar word to fence-straddle:

alternate, be indecisive, be irresolute,change, change mind, dither,fence-straddle,fluctuate, hedge, hem and haw,hesitate,hover,oscillate,pause, pussyfoot around, reel,rock, run hot and cold, seesaw, shilly-shally,stagger, straddle,sway,swing, waffle,wave