I bought a liter of MFS on sale for $50. I started at 6mg, went to 7mg, but I always had throat irritation, stinging, harshness, and I attributed that eventually to being peppery. I vaped a lot though...
Being new, I thought it might be the PG, so mixed high VG. It wasn't until I lowered the nic that the harshness and pepper went away, down to 3mg. But now I vape way too much based on some advise from people on the forum.
I got a sample of NN, will try ordering a small batch of VT, and ordering Chemnovatic. Will try to find something that let's me vape at higher nic levels so I can pleasantly overdose and thus vape less lol.