Would just like to update this post. The key here is the line:

unless Bitcoin breaks through the new resistance level of $600ish, a fall to the previous resistance would only constitute an 18% pullback (only half of what the Bitcoin seems to prefer).

Now that BTC is posting ATH of $7k, a pullback to $4.9k would satisfy both markers (30% drop / support at prior resist). Seems to obvious to actually happen.