liquids??

i have had quite a few liquids but since coming on to this forum i have found a few sites that allow you to do your own percentages... like vg 80% and pg 20%.. or 50-50.. so on n so on.. i usually get the 18-16 nicotine.. sometimes 24-36 for my tougher days.. but i was just wondering how that will affect the smoke itself.. better taste?? better vape?? and of coarse throat hit... any suggestions would be nice... im not a big fan of a harsh throat hit.. so i usually stick to liquids i know dont have a harsh hit.. id like to expand.. i just need a point in the rite direction.. thanks vapors..