I ordered my blu late last Friday evening and it was in my mailbox on Thursday....not bad compared to some of the horror stories i've read. The first atty died within hours. I tried cleaning it but it still produces virtually no vapor. However the spare atty had been vaping strong since then. Im working my way quickly through my initial supply of carts and I have already ordered 2 30ml jugs of juice from revolver (cant beat the price) which should be here in a couple days along with 2 spare atty's from Blu. I plan on drip/dipping at home and just refilling the carts I got to take with me on the go. So today I started pulling out the inside of the carts to get them ready for when my juice comes and the insides are different sizes. This makes no sense to me. Some are shorter than others. Anyone notice this? Oh well I guess ill just refill the taller ones because I guess the atty will wick the liquid better? Otherwise I dont seem to have a problem with vapor or hit quality. I got the 12mg carts from Blu which i attribute to semi-weak throat hit so I got the 24mg liquid on the way. Drip/dipping the 24mg should do it. Probably gonna invest in a 510 pass thru system (whats the best pass thru?) for home and use the refilled Blu's on the go. Ideas? Help? New to vaping and never looking back....................JDSupreme