I just sent back my MVP today for replacement from the seller due to defective center connection on the 510. My 18650 Batteries were supposed to come today with 2 day priority shipping, but NOTHING!!! Hopefully tomorrow, then I caan use my nemesis Mech Mod. I talked to my local B&M and he said he'd throw me a 18650 battery and charger if I made him a couple custom nano micro coils for the Protank II coil heads. I save all my old coilheads for rebuilds, so I made two of them for him, one at 1.5ohm, and one at 1.6 ohms. I did them at 28g on a 1/16" drill bit at 12 wraps TIGHT!!!!! Wicked with cotton and a flavor wick. I wet um already in case he doesn't know better. He isn't familiar with building coils. He said he's never had a cotton wick before, so I was like, "Dude ur missing out" He's gonna run it on the iTaste 134. I ohm tested both coils and both ohmed perfect. I was VERY proud of these nano coil builds. My best work to date. They are so tight, pretty and PERFECT!!!!! Rip Tripper has the best tutorials, such great detail that it makes doing the Nano Micro coil a no-brainer