Classic RY4 doesn't have much tobacco "presence," nor should it. The flavor profile is designed to blend/meld together the individual flavorings of a mild, neutral synthetic tobacco, caramel, and vanilla into a balanced, seamless, and singular overall flavor. If you can distinguish any of the individual ingredients in an obvious way when vaping an RY4, then it isn't Classic, it's what I call Custom (and RPadTV calls "Modern" or "Western"). Chinese-made RY4s are typically Classic, while American-made RY4s tend to be mostly Custom. Some American vendors sell Classic RY4 under their own label, but those are usually out-sourced and manufactured in China.
NET-based RY4s are almost invariably Custom, since naturally extracted tobacco is---by its very nature---more emphatic in its tobacco-ness. Custom RY4s come in many variations, of course. Some are caramel-rich or vanilla-rich, others use a stronger, more potent synthetic tobacco flavoring, and still others just push the flavor envelope by stretching beyond the RY4 trinity of tobacco, caramel, and vanilla by substituting other flavors for one of the basic three (examples would include maple, butterscotch, or cotton candy in place of caramel) or simply by using additional flavors on top of the core three (examples of additional flavors include nuts, custard, or citrus).
So, Classic RY4s are TINOs. They're not meant to be tobacco blends. If you want an RY4 with an authentic tobacco presence, get an NET-based RY4.
Here's a list of NET-based RY4s:
DarthVapers RY4 (in-house NET)
GoodEJuice GJ4 (in-house NET)
HighbrowVapor Highbrowbacco RY4 (NET, source unknown)
Mom&PopVaporShop RY4 (Tobacco Absolute)
Mom&PopVaporShop RY4v2 (Tobacco Absolute)
Mom&PopVaporShop RYO4 (Tobacco Extract, a cousin of Tobacco Absolute)
Moondrop RY4 (Tobacco Absolute)
MountainOakVapors Full Virginia Flake RY4 (in-house NET)
MyVapeJuice Rogue RY4 (in-house NET)
PrimeVaping PV4 (NET, unknown source)
QuickNicJuice RY4 (Tobacco Absolute, I think)
QuickNicJuice ouR whY Qu4tro (in-house NET)
SpringVapor Fall Harvest RY4 (NET type/source unknown)
SpringVapor Black Label RY4 (NET type/source unknown)
SpringVapor Black Label RY4 - Day and Night (NET type/source unknown)
VapeRite Organic VR4 (in-house NET)
VapeRite RY4 (in-house NET?)
VaporStation VS4 (Tobacco Absolute/NET blend)
Want2Vape RY4 (in-house NET)
Want2Vape Rock Star (in-house NET?)
(Ahlusion Gold Rising isn't on the list because it lives outside the flavor profile of RY4. I like Gold Rising, but it's not an RY4.)