If anything tastes burnt at 3.0 or 3.5 watts, there is definitely something wrong.I have been dripping with my volcano Lavatube and a dripping atomizer that is bridged inside (and drip tip from volcano too)...I think it is rated at around 3.8 ohms. and im not using a high wattage setting (ive experimented with watts @ 3.0 and 3.5 so far) and I have varied the voltage anywhere between 3.0 to 4.0....I don't like vaping at higher watts and volts because its just to hot and harsh to me.
Maybe the wicking is so bad that no juice is getting to the atomizer.
Or maybe you are mistaking watts for voltage.
No juice on earth should even think about tasting burnt until you are at around 8 watts.
The same is probably true for any atomizer that comes in at 3.8 ohms.
I typically vape at around 10 watts, but since I'm dripping I don't have any wicking issues to worry about.
My atomizer is 2.3 ohms and my Twist is usually dialed up all the way to 4.8 volts.
What kind of "dripping atomizer" are you using?
Do you have a link?