I've read, as I'm only a vaper since 8/27, still learning. Ordered the Ego Mega Cylinder Atty's at MFS, at 6.57 per atty, HOLY COW, got two with shipping for 19.00...that is INSANE! Then got the Carts through Cignot (MFS was out) got them both today and fired them up....WOW...is all I can say...if you have an EGO and are just starting up, blow past the reg atty's and just get these, my vapefest will go on forever...BUT flip side is I'm gonna need more juices: LOL....Both Cignot and MFS have GREAT communication and fast shipping....loving the E-cig more and more every day....haven't touched an analog since and do NOT plan to EVER!