I haven't tried a Terry saddle in years, but I think they offer a guarantee so you don't stand to lose much by trying it. According to their website it's 152mm, so not much narrower than the Ruby.
Was the Ruby uncomfortable last year, or is this a recent problem?
- Gray 2010 carbon WSD road bike, Rivet Independence saddle
- Red hardtail 26" aluminum mountain bike, Bontrager Evoke WSD saddle
- Royal blue 2018 aluminum gravel bike, Rivet Pearl saddle
Gone but not forgotten:
- Silver 2003 aluminum road bike
- Two awesome worn out Juliana saddles