why were you instructed to taper off at all if you are not convinced your cycle is completely off and for how long have you been taking it. Do you have any heart conditions to go with your CH at all?

Been taking Verapamil since early november

hi jish,
            only from my experience
I was on 280 verapamil and thought id try to get off it, which was about last September, every time I tried, after a week or so of slowly reducing, with no signs of the cluster being around, I started getting shadows.  really annoying !
so at the minute, being relatively p/f only the occasional night shadow, im on 180 verapamil and im going to keep on it at this level. its only a low dose and January is my danger time.  are you taking the vit d regime ?   I believe that these two combined are whats keeping me in this current p/f state.  verapamil takes a couple of weeks to get into your system should you go back into cycle.
if I remain p/f by end febuary, i'll reduce to 90 mg verapamil once a day and the vit d3 regime then see how that goes for a month or two. my reasoning is that if it ramps up suddenly I can play with the d3 levels and still have a little verapamil in the system.  this is only my way of doing things, still new at it, but I definitely know that ive got cluster headaches and without being on anything, would be playing with fire, this affliction doesn't go away, so im hedging my bets carefully and trying to at least be prepared until I can hopefully predict or no exactly what works and best preventative practice. hopefully to be stand alone on the regime eventually.
again, I stress this is only my action plan, everyones different,   haven't had much joy in trying to fully ween of verapamil.......
best of luck
colin