Throat hit is created by mainly just two things: nicotine strength and warmth of the vapor. If you want to decrease the throat hit, then the easier way is to decrease the nicotine strength. There have been many posts of people wanting to decrease their nicotine strength but not have as great an effect on the throat hit. When they moved up to a 5 volt or variable volt PV, they were able to decrease the nic and still have an OK throat hit. You still need some nicotine to get some throat hit, however. 6mg nicotine strength is very low and will not provide much throat hit.
Additives to eliquid to increase throat hit such as PGA or pepper do NOT provide good throat hit. It's just a waste of money. If I was vaping at 26mg and wanted to decrease the throat hit, I would drop down first to 18 or 16mg.