Oh dear. I use 70% pg. Too much vg interferes with my breathing and leaves a slick feeling in my mouth. Others go with 100% vg. You're kind of on your own, here. You might try one extreme or the other. If you don't get the throat hit you want, next time go with higher pg. If you feel a need for bigger clouds, go heavy on the vg next time. This kind of implies you shouldn't make a really massive order till you form your own opinion.
If you can find a local vendor that specifies the ratios, you could use them to help define your tastes. If they won't tell you the ratio they use, or unwilling to custom blend, experiment online with relatively small quantities.