1. Measure your sit bones and make sure the saddle is wide enough for them.
2. If sliding back feels better, do you need to move your saddle forward a bit? I recently experimented with moving my saddle back a few millimeters and found a marked increase in pubic bone pain and soft tissue chafing. Even if that doesn't solve the problem completely, it might make your current saddle more bearable while you search for a better one.
3. Other t-shaped saddles:
- Selle San Marco Aspide Glamour (155 mm; very firm; no cutout, though the Arrowhead model has a cutout).
- Bontrager Affinity (designed for your riding position, based on your description of saddle height vs. bar height; comes in 3 widths and 3 levels of padding; no cut out; widest WDS Affinity is same size and shape as Aspide Glamour, if you like that shape but want more padding; Bontrager offers 30-day guarantee.)
- Specialized (Ruby, Jett, Lithia, depending on amount of padding you want; has a cutout; comes in 3 widths; Specialized website offers 30-day guarantee though local stores might not.)
- 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