Im doing a bunch a discharge tests on the E'fest side by side to the AW 18350 at 2,3,4,5,& 10 AMPS. I did a quick side by side at 2 amps and the E'fest is dead even. The only thing that will show they are head to head is 5 amps and up. As far as performance, 1st impression, dead even and exact same, they did not do ANY changes to the chipset in the VMAX SS. And the person spreading it around saying the SS has a blue display......stop getting peoples hopes up and DO NOT post if your information has even a shed of doubt. Thats more than half the problem with ecf and newbs getting the wrong information....more times than not it comes from someone so bored they just start posting wrong information for the mere fact of talking out of their A55. Sorry folks , it had to be said. Only thing as far as the bottom cap goes, needs noalox, but most SS threads do. But the threads are great on my unit. The E'fest batteries are the BEST fitment I've found so far out of the 18 different batteries I've tested and tried. They measure 43.17 on the micrometer. Nipple top Efest are on the way to the U.S. as we speak or type. Soon to be at a popular vendor. I don't think we'll have to worry or even ask from here out about any chipset modifications to the VMAX, the latest version after testing shows the most stability, and consistency out of all that have past thru my hands and been hooked up to the LeCroy 312-A Oscilloscope. Basically all Smoktech did was instead of letting the carto/atty see the max battery voltage for those miliseconds while firing, they dropped and regulated the maximum voltage it sees now to 1.78 volts less. So before, if the batteries were at 8.2 volts, when you pushed the fire button, in those miliseconds it would top out at 8.2v dropping down to 3.8v.....now same senerio, new PWM setting, it tops out at 6.42V, may seem like a lot but all in all it is much better , more stable, more consistent, but with that same feeling of .....WOW this thing is different than ANY other device I've ever used or have. This was a rushed explanation, sorry if some of you are lost or didn't quite understand what I was trying to explain. Anyway, hopefully tomorrow I'll be done with the battery side by side and post my findings. Take care everyone. ......J