Considering you have a few BM player neighbours, me being one of them, I'm a tad scared
I'm not ENTIRELY happy to have you so close to my expansion area in the core, its true. Meanwhile Flyingmana has 740 ish planets, at best I am taking 7 per turn, and as I take each planet he defends the remaining ones a little bit better, so I wouldn't worry about too much right now.
Does anyone use Slingshots? The upkeep seems rather expensive. I could see using them on my few core high production military planets but other then that I don't know that they are worth the cost.