I want to use this mod which when you mine a certain block (I.E stone) it'll switch to the pickaxe and when you mine dirt it will switch to shovel. (Here is link) Its the first mod on the topic. http://www.minecraftforum.net/topic/753 ... zens-mods/
I dont see anything wrong with it. all it does it allow you to switch tools automatically (something I have used in the past) its the same as having convenient inventory or any other mod that allows you to move/craft things faster