I waist tons of time trying to lock blocks while fighting terrain. It would be so, sooooo much easier to build in this awesome game if blocks locked onto blocks better then terrain distraction. The placed block should have priority over terrain. Makes no sense to dig out terrain, at the point of block support, to be able to place anther block at terrain level (to be supported by terrain). If I can get a sliver of the bottom of the block I placed, I should be able to place another block, at best!