Can't say if it's yuri or not (sci fi picnic), because I only saw one chapter... but hey, 2 lead girls in seemingly dangerous situations, nice art and interesting story, I don't need much more to look forward to the anime.
Hyrlarn how dare you, shame on you! you have something against shiny rocks?! is that what this is!?
But seriously, can't be helped, I know that even if you put a lot of girls in one room with a topic, is not gonna be great for everyone, but in this case it was for me, very much so! I'm probably like you when it comes to slow start, the manga bores me to death.