The blue slimes were much worse before the change to slime islands (I think they were spawning at a rate grater than all the AM2 mobs put together), & I really like being able to grow green slime from saplings. I think Natura's tainted soil annoys me more than anything else from that mod, although it looks like the clouds really screw up the image you get from the open blocks height map projector (poor XBCrafted's base looked like it was hidden under a pile of salad in one of his recent videos). One of the challenges for me this map will be finding alternatives or doing without those few key features I've come to rely on from all the mods I've cut. So far it looks like the biggest downside will be loosing all that world gen to scan for thaumcraft research points. I may actually have to make a deconstruction table & go back to sacrificing materials to complete all the research. The upside? I can actually play the game properly on my underpowered laptop again! I think I might even get better frame rates while recording walk-throughs for the community showcase.