I added a small lot today but my initial purchase was far larger...

I added a small lot today but my initial purchase was far larger and at a much lower price. I feel there is plenty of upside here to justify adding to my position. As for you, that's dependent on your strategy and goals. Given what we know now, what's logical by 2018-19 (how far I'm looking out)? I see 15-20 easily but that's my opinion. Add another project or licensing deals and that can go up further imo.