Well I have not tried a different mesh but I think the nicks are what doing the better airflow...but who knows...Nothing comes through this awesome screens ... maybe Vape4Life should take a look at them...
I wouldn't change the screen now after I locked the metal pretty good
I will try your screen on the PHVES and another screen from J.R.R and tell you if I feel any difference...IMO maybe 2%-5% change ... nicks cause about 20% more airflow I'd say.
I hadnt thought about that, you sure dont want any trash coming through the screen, maybe wider mesh isnt a great idea. These are fine and do believe you are right about the notches cut in the SS, turned just the right way you can really get great airflow. Thanks for your input bro!