to elaborate .... I guess it's the throat hit that I miss with the higher VG but that's balanced out a bit with the higher nicotine ... for example I enjoyed the 'Rope Cut' that I bought and that's 70VG but it was 12mg and didn't seem that different to my usual 50/50 12mg when I was vaping it..... and recently I vaped a couple of 10ml of bottles of 50/50 in 6mg and other than vaping a little more than usual it still satisfied me when I took a draw.
But when it's 70VG and 6mg, it just feels that too much is missing, other than the flavour it's a bit like vaping thin air to me, it doesn't replicate the 'smoking' feeling breathing it in.