I tried a flavor boost for the heck of it once, just because I really loved the Vanilla Bean flavor and the smell of it from the get-go. Other people around me (non-vapers and non-smokers) always said it smelled great to them, too. I always order it now. You don't want too big a flavor boost though (like when you get into DIY liquid that I'm getting prepared to do). I've heard that when it reaches a certain point in additional extract...it defeats the whole purpose.
As for PG/VG ratio - I use a 40PG/60VG simply because I like the slightly lower PG%. There's not a lot of difference between that and the 50/50, but for me...I found that I never get a slight headache now, when vaping the lower PG. For other people it may be different.
As for PG/VG ratio - I use a 40PG/60VG simply because I like the slightly lower PG%. There's not a lot of difference between that and the 50/50, but for me...I found that I never get a slight headache now, when vaping the lower PG. For other people it may be different.