Hi Sharon i was like you and the main thing for me was throat hit, i tried the Dura the Evo and the 901 then i tried the Screwdriver as the last resort if that didn't work then it was back to analogs, but it did and for the last 3 months of using it i have not touched or felt inclined to use an analog, the problem with auto batteries is you will only get about 2 weeks constant performance out of them then they really go downhill and you need to replace them at $10 - $20 a time, with the SD you have no cut off so you can take nice long draws and the batteries will last 3 - 6 months at around $1.50 each, also by using the RN4075 atomizers (generic 901's) they run hotter than the DSE901 you get top performance from a tried and tested workhorse but bear in mind you should treat your atomizers as disposables they last 2 - 4 weeks dependent on usage before performance drops off and replacements are cheap at $6 each from Ruyandirect.com, the only problem with the Puresmoker mod is that it will run 7volts through the atomizer which will shorten the life of the atomizer and to get best performance you will have to constantly drip quoted as by Cash, as far as juice goes i vape Bestecig flue cured 24mg as a daily and 36 mg TW French Pipe on the evening and this combination with the SD gives me the consistency and throat hit i was looking for.
By the way i now own 2 SD's and this is all i need for my vaping habit.