Throat hit can be achieved in many ways. PGA a few drops in your juice or a higher nic content juice and even voltage will play a role.
I hear you! I as well could not rid myself of analogs until I got my 510. I haven't had one since. I have been
vaping for 40 days and smoke free for 26.
Although, I vape at 18-20mg during the day, I vape 24mg with my morning coffee. RY4 dripped in the morning was what suited me, 10-12 good hits or until I got a mild buzz, then I just vaped normally. Whatever you do, the 510 is the atty to give you that great throat hit in comparison with others. My morning fix is still 24mg but only 5-8 hits now. BTW as my taste buds heal, I now find the stock RY4 too sweet and use the RYO version.
vaping on a direct USB passthru at 5V will definitely increase TH, as well as a high mah battery at 3.7V.
Last but not least, the atomizer. The stock 510 at 2-2.5 Ohms, is awesome in comparison with ht eclones at 3-3.5 Ohms. Having said that, I have a clone 3.6 Ohm atty that vapes like a champ on a stock 510 battery, but not so good on the PT.