I usually order 50/50 - but because I like bolder flavors, I've been increasing my PG level to about 70.
Another thing - you can send Ahlusion an e-mail with your feedback form and tell them what you're vaping on (equipment, resistance, tank or rebuildable, etc). They make their juices with drippers in mind, so they need to know if you're not dripping to adjust the juice to be more appropriate for a tank set up.
I also have asked them to profile me with max flavor.
And when you do try them again and get a feedback e-mail - give them feedback like "I love the blueberry vanilla cake, but I would like the blueberry to be more forward and the cake more in the background" or "For me, with Peachy Criminal - I can taste the Smooth Criminal component, but none of the peach" - and they will make those tweaks to your profile.
And if you're not ready to give feedback when you get the e-mail, that's ok - you don't have to give feedback to use the coupon - I usually give feedback on the flavors themselves a month or two after I get the juices.