Exchanging Zcash in to Bitcoin and back for profit

So my first attempt at increasing my zcash failed when I moved it via my cryptonator wallet as the fees were high.

I moved it back via changelly and I lost a little bit of my zec value. From 0.82 down to 0.81

Bitcoin has just plummeted by 500 euro today, so I've moved my zec back to bitcoin again, and now I'm going to wait for the right point before I move it back.