Lol, it's spelled Manyullyn, not Mannyllium XD. Another option is to have Manyullyn Head/Obsidian Binding/Manyullyn Rod combination with Two Moss, One Silky, And Speed for the rest. It's great for long mining trips because you have (I think) 5x the durability of a Cobalt/Obsidian/Manyullyn pickaxe, so you won't run out of durability during the trip and you won't run out of inventory space because all of the ores are being silk touched. Additionally, I think the extra speed modifier you get for using Silky over Auto-Smelt+Luck makes it on par with Cobalt's speed. And, when you get back home you can toss the ores into a Pulverizer setup for the 5% extra ingots/ Use another pickaxe with fortune 3 to get maximum drops just like the Cobalt pickaxe.