The two joints you mentioned were the Rainbow & Monterray.

Players here had more moves than a belly dancer and cheating by marked cards or collusion (or both) was a rampant.

I earned my bones there in the 1960s. Colorful folks were the 'ol gals Kitty and Norma, The Mad Genus of Poker Mike Caro, Doc Hayano and the colorful shills. The clubs had great cheap food too!