I met Bruce one night, up at WCBS-FM, while visiting with a friend who used to have the shift immediately following his. Bruce is a genuinely nice person. I brought my fiancé (at the time, my wife now) with me, since she'd never seen a radio station. Bruce was super nice with her, not just in a cursory way to be polite. As a longtime radio geek, I knew his audience loved him, but I saw one-on-one just why they do.
Bruce did write the intro to Sklar's book, but he also wrote an autobiography of his own, also in the eighties. If you can find it in a library, it's worth your time. I don't know if it's still in print, though there's always Amazon to try.
The reverb was not under the control of the jock, the plate reverb unit was out at the transmitter in Lodi (NJ), wired into the audio chain. Except during news blocks and special breaking news coverage, the reverb was always on. Interestingly, back in the mid '60s, some of the programming used to be simulcast on WABC-FM, and they got a feed from the board before the reverb. It was a much cleaner sound, befitting the better fidelity of an FM signal, but it was lacking that distinctive sound.
The Schickhaus Meats campaign was always a little schlocky, but it was just one ad campaign that ran on the station. (If you want to hear what great talent can do with mediocre ad copy, find an aircheck of Dan Ingram doing a live read of a Schickhaus spot. He frequently ended them with the line, "Schickhaus, the most carefully pronounced meats in the world.") Many ads were quite sophisticated. As one example, go onto Youtube and search for Shaeffer Beer's radio spots from the '60s or '70s. Same basic music, same tag line, but recorded by some of the greats from the jazz world: Louis Armstrong, Ella Fitzgerald, Tony Bennett, as well as pop artists of the day. These ads also aired on WABC.
Yes, they had a low TSL, but they also had a phenomenal cume. In some ratings books, their cume was at or near 5 million listeners! I defy you to find any station, anywhere in this continent, with anything approaching that level of listeners.