I grew up listening to both Q95 and Q95-5 as my primary pop music stations. I remember seeing Q95 playlists in old issues of Billboard up on Google Books from 1989 and 1990 and noting that they were playing songs like Madonna's "Oh Father" and Depeche Mode's "Enjoy The Silence" at that time, which never made the AC chart. I believe Gary Berkowitz, who had previously worked at WHYT, was the consultant when Q95 was first launched in 1989. Apparently they had already shifted to mainstream AC by the time I started listening to the station in 1991, and the reason I latched onto it was that I had fallen in love with the song "Baby Baby" by Amy Grant and Q95 was the first station I heard playing it. (WHYT played it too, but they played some horrible dance remix that I couldn't stand.)
IIRC, Q95 had already started shifting toward Hot AC by fall of 1994. That was when they picked up Casey Kasem's Hot AC countdown show, "Casey's Hot 20," in place of his mainstream AC countdown show "Casey's Countdown" which they had previously aired. Of course, at that time, there wasn't a whole lot of music on Hot AC stations that mainstream ACs weren't also playing, so they still had a very conservative sound, but I would still call it a Hot AC by that time as their playlist closely mirrored what was on R&R's Hot AC chart.
The shift to Q95-5 in 1996 coincided with the station hiring Danny Bonaduce as its morning show host following Dick Purtan's departure to WOMC, and it was around that time that the station's music mix became somewhat edgier while still remaining Hot AC - they stopped playing softer AC artists like Michael Bolton and Gloria Estefan and started playing more adult appeal CHR hits like Alanis, Real McCoy, La Bouche, Sarah McLachlan, Joan Osborne, Dishwalla, Jewel, etc. For a time they seemed to have something of a split identity, remaining a pretty conservative Hot AC during the day but playing more newer music and almost sounding like CHR at nights - they on occasion would play a tiny bit of "safe" rap, like Will Smith, and would throw in dance remixes of ballad hits like Toni Braxton's "Un-break My Heart" or Celine Dion's "It's All Coming Back To Me Now." Until WDRQ’s rebirth in the summer of 1996 and subsequent shift from rhythmic AC to rhythmic CHR, Q95-5 was the closest thing Detroit had to a CHR. I still enjoyed, however, getting to listen to ‘true’ CHRs like Flint’s CK105.5, Toledo’s 92.5 Kiss-FM, or Monroe’s Tower 98 whenever I could and whenever they DXed into my Macomb County neighborhood (I remember going to great lengths to hear CK’s AM simulcast on 1570, being the best way for me to get my CHR fix – but that’s another story). I do recall they had a decent selection of '80s music in rotation as well - the Sunday-night '80s shows were always good for bringing back a long-forgotten-but-still-a-great-song stiff, like Heart's "How Can I Refuse?" from 1983.
I do recall that Q95-5 was quite slow to react to the teen pop movement and the boy bands while DRQ jumped on it, and that is what enabled DRQ to swoop in and eat Q95-5’s lunch by 2000. Around that time was when I recall that they actually switched to CHR/Pop, though still as Q95-5, to better compete with DRQ. However, I also recall Q95-5’s playlist being full of hot AC-leaning stiffs from the likes of Fisher, the Cranberries, Dexter Freebish, and Leona Naess, and that they were still slow on boy bands and rhythmic material (since Q had had the image of being the “no rap” station for so long), while DRQ stayed the course as the all-inclusive, all-around CHR station. While Q95-5 still played the likes of Britney, Christina, ‘N Sync, Jessica Simpson, O-Town, and Mandy Moore, one sort of got the sense that they would have preferred not to but had to if they were to be credible as a “hit music” station – hence the inclusion of all the Hot AC material in their music mix that ultimately went nowhere on the CHR/Pop charts – perhaps they felt Planet 96.3 had left a hole for Modern AC by moving into “Alternative Classics.” They were also very friendly to the wave of country-to-pop crossovers from the likes of Faith Hill, LeAnn Rimes, Lonestar, and Shania Twain – they even played country songs like “Who I Am” by Jessica Andrews which stiffed on the pop side. I personally preferred the music on 95.5, but DRQ was definitely the better-executed station at that point, with easily recognizable personalities like Jay Towers and Lisa Lisa.
Anyway, as we all know, Q95-5 made its final transformation into Channel 955 in February 2002, and it was not long afterward that the tide began to turn in 95.5’s favor again. By the time WDRQ switched to Doug-FM, it had become the more adult-leaning station with lots of ‘90s gold thrown in.