yes like Queztal was saying, for bigger, larger hits, best to go with a dual coil atomizer, and larger sized glass dome... the reason i like the domes is you know how much is coming out, if any and makes sure it is working well... also the hits are huge and you don't need to hold down long, allowing for longer battery usage... the spinner 2 is a great battery, and can be purchased for around $20. the set of 4 domes with dual coils another 20$ , all on amazon believe it or not..
another real great pen for on the go, i grabbed the quickdraw... easy and smaller hits, but works wonders comapared to the older micro gpen..