So I copped out and just ordered "trial sizes" since I mostly
vape unflavored anyway.
Flavor West - Butter Pecan
Flavor Apprentice - French Vanilla II
Flavor Apprentice - Western
along with my VG.
I may be able to make a passable RY4 from that, or use them individually. And if I like them, I guess I can order the full sized
versions. I was wondering if anyone was going to pop in and say "yeah, order <orange> flavor for the RY4, that really makes it".
I decided not to order their RY4 as I've had iffy experiences with (different vendor, different flavors) pre-mixed RY4 in the past. Mix your own from the base flavors! Then it's "to taste".
Thanks again everyone for the feedback. I guess IDK, RY4 is a weird one. No two are alike. It's a "mystery flavor" for sure. I have to apologize for popping in and then ignoring good advice, maybe I shouldn't have posted. But I'm also limited to what I can order from the site that I'm ordering from (that I didn't state either!).
No amazing revelations came in as to a secret-recipe for making RY4, and I changed it all up anyway after thinking about it.

But thanks again for the feedback.