I DIY my ejuice, and the higher the nicotine, definitely higher the throat hit. ( I mix to about 30mg, I found that was the ideal # for me having started at 18mg)
I am not doing it to quit however. I quit, quitting. Tried the patch, worked for only a few hours during the day for me. Then I needed more...Tried all sorts of things. I need nicotine in my life, it's definitely self-medication.
I actually don't LIKE throat hit much at this level but, till I mess around with the vg/pg ratio I'm content. I haven't needed or wanted an analog since I got my levels right. I was offered one, after about 2 puffs, I was disgusted and won't go near one again. I smoked over 20 years. Never again.