My apologies that I haven't been more vocal in this thread lately, but I was having consistency issues with my ESV that have now been resolved.
is there a fix to this? I am having the same problem
I too was having this same problem recently, but slightly different. For me, I could only get a decent hit, it seemed, after plugging into my computer and then unplugging and taking a hit.
What worked for me was charging it closer to 95 % charged, doming the screen away from the heater coil, fiddling with the temps, and hitting it with a more consistent pull.
I know it's been said by others, and myself, that the ESV has not much of a learning curve, but I no longer believe that to be the case. If you do any coil replacement, or bottom bowl screen replacement, I think you have to "teach" yourself how to hit it again, for optimal purposes.
IMO, the ESV is still a temperamental unit, but it's also nearly completely upgradeable and we know improvements are being implemented nearly as quickly as problems crop up. I for one wouldn't trade my ESV for any other vape, and have been seriously considering buying a second. I never considered that for my FF, and if you know me, then you know I'd have sex with my Firefly if I could.
Fiddle with your temps, work on your screen placement, and keep a medium-fast, steady draw. That's what is working best for me.
I don't think anyone will tell you that the ESV is perfect, but if you want a vape that has ridiculously personal customer service, *instant* convection capabilities, and a completely inconspicuous form factor, then the ESV is pretty much impossible to beat...