I liked the acts at RTB but Tech is a different kind of underground. If the crowd wasn't feeling him then it's their loss, I feel sometimes the underground scene has too much hippy/earthy type of rap shit.
How were the receptions of House of Pain/La Coka Nostra, RZA, Raekwon, MOP, Slaughterhouse, Necro, Pyscho Realm?
Don't blame the Backpack-ish/"hippy/earthy" rap shit on the crowd not feeling Tech.