True - poker income is scalable provided your talent/work ethic is as well. I'm an underdog in a 5/10 game live or $1/2 online. Live cash $2/5 NLHE full game is my bread & butter. Really enjoy PLO as well.
For blackjack, I still have a laminated card of the table cut out of my favorite bjack book. Didn't make a system or plan out of Wendover, just did what I could on trips with friends. The noob that gets flagged by the dealer by the 2nd shuffle.