The thing is, they just break very slowly I wondered a couple times why efficiency doesn't have an effect on those (or if they do have one, it is very small) But I never made the connection to not needing to use a pickaxe. *point and laughs at FDNY*
I thought they didnt, but i saw a video of it so i decieed to share the concept and amde my own gifs in EMC
Not having enough vaults to keep your stone slabs. Seriously, all 42 vaults are filled. Not to mention the physical stone slab storage.
Im sure he is the stone slab god. Due to his worshipness towards stone slabs. Some examples are: http://empireminecraft.com/threads/closed-slab-of-the-month-event.50073/ http://empireminecraft.com/threads/praise-stone-slabs.52767/ http://empireminecraft.com/threads/i-need-your-help.53465/ http://empireminecraft.com/threads/stone-slab-exchange.56277/ Among other stone slab threads
The struggle of being just a downright terrible builder. I do like the design though. I will most likely keep it, unless it bothers people.