Thank you guys so much for the amount of info i have been able to just literally dive into and soak up. As i have explained on numerous occasions i only have a blu starter kit and was quite discouraged until i found out HERE that you could refill them. I have refilled the same cart about 3 times and its worked fairly well. I'm using some eliquid that a friend gave me that i have no idea what ratio or what but it just has a sticker of VG on it. The taste isn't the best and the fluid is WAY too thick for the cart that comes with the blu any thoughts on this or advice would be appreciated. The vapor produced and the TH are awesome at first but soon taper off after about 5 pulls. I personally think its because blu sucks but i could be wrong. I think i might need to dilute the fluid some but looking for input.