a 1.8 ohm coil head will produce more vapor, or you can rebuild your own with micro coils and cotton wick, or even SS mesh. The best way to get more vape from a PT, is to put it in the obsolete drawer or box, and get something better..
Sorry, cant help my self sometime, you know what they say, nothing worse than an ex pt user, or was that ex wife, no no, nothing worse the a ex smoker. What ever. There are several threads on the pt, and what people will do to get more out of them. But, there is only so much that a pt can deliver. Once you hit that threshold, it's time to move on.
The pt usually comes with two heads, a 1.8 and a 2.2. Whatever you do, don't remover the flavor wicks, this will cause it to flood. Flooding is not fun.