The Marlboro (USA Mix, I think) from strictlyejuice fills this role for me. They only have 36mg, though. I often use it as a base for other flavors. I've also bough MB juice from other vendors, very similar.
Your pre-filled carts might have been different, though. My 510 kit came with a version of RY4 that tasted like chicken-fried monkey poo (I'm only guessing here). It took several cleanings to get the taste out of the attys and carts.
Anyway, you're not the only one who likes it. I'm right there with you. Just ordered 50ml this week from strictlyejuice and cignot.