I get it to an orange glow and keep it there as long as I want, with no pulsing needed.
As far as I can tell 3.7 volts will never get a 2.3 ohm standard 510 atomizer above orange no matter what.
I have never killed an atomizer in over 15 months of using dry burning as my sole cleaning method.
And in that time, I am only on my second atomizer.
My first one having suffered an unnatural end due to falling asleep on the button.
And even that didn't kill it, just caused a burnt plastic taste that I could not get out.