i want to be able to sell on the way down
So in other words, you bought high and want to sell low? That makes no sense, except it's what I suspect many members do here. Why not hold what you have and buy more if there's a dip?
Also, nobody(!) here can tell you with a straight face where the "absolute bottom" is. Not in bitcoin, not with precious metals, not in any type of market. If anyone knew that with certainty, it wouldn't be the bottom. So take what people tell you here with an enormous salt shaker of NaCl.