The new style works pretty ok until it starts gurgling. As it seems, the internal wicks are put exactly at the same level and position as the holes (obviously) to act as a seal and also as a transport for the liquid to get into the coils. Once you draw too much or the wicks become partially saturated or even move from that position, it will start gurgling. A little frustrating to say at least.
I started to rebuild them myself (as single coil and dual coil version). I did a least 10-15 rebuilds testing what would suit me most and contrary to most, I haven't been having any luck with thicker (28awg) microcoils (probalby do to the use of VW). Heck, even the 32awg single microcoils don't produce nearly as much as vapor as stock ones for any reasonably amount of thime so I got frustrated and just put the stock ones back in... I was ready to live with them when they started to gurgle. In a moment of complete dispair and anger, I rebuilt one with two 32awg coils (3 Ohms each) directly on a wick (no more precision screwdrivers, pre-burning, nothing). I didn't even care aligning the turns of the coils. I just slapped them inside, snipped of the excess wick and bottom legs and threw it into a aerotank... due to my complete sloppiness and frustration, the resistance is variable (lol)... it depends if I screw the atty more or less into the base (it varies between 1.4 Ohms and 2.4 Ohms) BUT... ITS THE BEST VAPE I EVER HAD IN FOUR YEARS!
I don't know, sometimes I think we are over doing this stuff... if you forget the variable Ohms (due to the legs being not cut short enough and because the mini aerotank starts rotating the lower pin when you screw it on a mod/battery causing shorts, variable resistance and God knows what else), it has been my best ever rebuild... I have tons of vapor, crackling sound as the coils ignite and no gurgling or dry hits... go figure
Best Regards
Tony
PS: Vaping at 10W btw.