IME, most of the pre-mixed juices are high like that in PG, usually about 50-70%. PG is thinner and aids in wicking, among other things. But, like I say, some people like me are fairly intolerant of it. It irritates my throat and sinuses if it's over 20%. Some e-juice vendors will let you specify a mix of VG and PG. I broke down and just make my own 80VG/20PG juice, but my advice is to find a lower PG juice. I know Alien juices are 100% VG, so that might be a good place to start. If that works, you can increase the PG to avoid the cons of using 100% VG and see what happens. The main drawback to 100% VG is that it gums up your coils a little faster and it doesn't wick as well, so it's not very good for cartos based on the CE2 where the juice has to wick a long distance up to the cup. Those things aren't that serious and can be overcome somewhat, (like thinning with water and/or alcohol), so it's worth it if PG bothers you.