Yea.. Im doing something similar already.
Was powering down and selling all my Liquid steem at peeks.
Then buying in again at lows, trying to multiple my stake.

And I made 100€ out of 50€.. Worth in steem.

But I need to drive to austria soon to put some more Euros into a btc atm.. ;)

And then I was planning on doing exactly what you said.

I had the chance to buy at 0,22.
But me, dumb student, feared that it would also drop under 0.15

And with my little cash it makes a biig difference where I buy in..