Doc, wait for a better price and more opportune time. Right now you're throwing good money after bad and you've already taken a hit on your earlier buys.
Maybe let it find a base and then step in, otherwise this strategy makes no sense. The price has been trending down for months, and currently in a downward spiral. It's up to you, but I hate to see you buy all the way down, when you could be waiting at the bottom and scooping up even more.
Currently the market is still correcting, and there's no fundamental or technical reason for this to bounce.
GLTY