I ordered a MAP tank last night from MostAngryIndustries. They were out of ce2 MAP tanks but had just the empty tubes with caps for cheaper. As the site says "Have some blank cartomizers collecting dust? You can pipe cut out the XL CE2 and use this blank tank for all day vaping. " Which I know how to pipe cut something I figured hey I'll just order the CE2's from madvapes and have a decent set up. However after watching a few videos I saw that the map tank has a piece of tube that fits the top cap where you insert a drip tip?? I think?? Is that just a piece of cut CE2 pipe or is it something special? Has anyone ordered the blank map tank because on there site it doesnt specify whether or not it comes with it. Any help is appreciated guys. 