555 is a very nutty tobacco flavor.Rather good IMO. RY3 and RY4 are a nutty caramel tobacco flavor. Also very good. I can't help you with Tab as I have never tried it.RY1 and RY2 are pretty aweful. Stay away from them. Like GrimmGreen said, "Sweaty socks."
Huh. I really enjoy RY1. It took some getting used, to but right now I'm alternating between RY1, RY4 and Flue Cured.
RY1 from Eliquidplanet is initially just very nutty, less sweet than RY4. I feel like once you get used to this one the nutty flavor becomes more subtle and the sweet tobacco becomes more prevalent. Maybe Eliquidplanet does this one differently?
I've tried two RY4's at this point, Dekang and Ecigsmokestore/diyflavorshack. I kind of prefer Dekang, it has a fantastic throat hit but ya pay for it - I've noticed on exhale there is a slight burning in the back of my throat. Otherwise the flavor is a STRONG sweet caramel tobacco. It's odd how I adjusted to it, I was really put off initially.
Ecigsmokestore's RY4 has an *amazing* flavor but I don't get the same sensation. I might try double flavor next time but I don't know Dawn's liquid could duplicate Dekang's scrappy nature. Her flavors are often more balanced, mellow, or excellent desert vapes.
I'll likely give the other RY's a shot soon. I had read something about RY2 that made me initially not want to give it a go, but considering all mixed/negative feedback on RY1 I'm starting to think I'm going to dig all the RY flavors.