I was a smoker for 22 years and used to smoke menthol all the time. When I started vaping 2 months ago I was trying all these different menthol flavors from various vendors and hated them all. I have gone through so many sample packs to find the right flavors for me and have settled with creme, chocolate, and a couple tobacco flavors. I think I have about 10 bottles sitting in a cabinet that I may never vape again. It's definitely been a long learning curve to find what I enjoy. I cannot vape RY4, and tried four different brands. However I love Tribecca from Halo, which is kinda like an RY4. All I can say is taste truly is subjective and finding what works for you will take some time.
As for the mini Protank I agree the draw is very airy but can be fixed by adding additional flavor wicks. I have both the mini and Pro Tank 2 and have come to love them over all the other clearomizer/glassomizer's. For me the most attractive thing with the Kanger tanks is rebuilding the coils. It took some time but I have mastered the micro coil at around 1.5 ohms with a cotton wick. It has the best flavor and nice vapor production on all my PV's, even on my Ego Twist!