Dropping dm07 is really a pity as i played best on this map
But extracting the *.map data from the *.bsp and retexturing and relighting the whole stuff is just too much boring and frustrating work.
About Blue Sky: The map was never intended to be a 1on1-map. Of course it works "somehow" for 1on1s and i think it can be really funny but i would not recommend it for the ladder.
But i also didn't recommend soylent for the ladder and now a lot of players seem to like it as a tourney map (and i really suck on it...

)
bleach->aneurysm->straledm5->dieselpower->space-fun->o-fun->runningman->runningman1on1->aggressor(conversion)->soylent->bloodprison->bluesky->ruiner->reslimed->strength