I'm also confused about the 37 mile ride and then the comments about stopping frequently. Saddle fitness is something that comes in gradually and you just have to stick with it. Discomfort is normal until you have put in some time. However numbness is not normal, and if you have that you need to make a change to the seat angle or seat itself.

I have a WTB Rocket V Pro on my hybrid (lately doing time almost exclusively as a MTB) and I like it a lot. It's narrow and has enough give for stutter bumps on the trail, but isn't overly padded so you sink in and get sore.

I have a Selle Italia Prolink on my road bike and it's firmer than the WTB Rocket for sure. However they are both rated as 130mm, both have center relief cutouts, and they both work well for my sit bones. The Prolink has a little more room on the back of the saddle to shift around a little, which I find very helpful for longer rides.

Width is the most critical thing. If the saddle you like is wider or narrower than the one you aren't liking, that's an obvious thing to change. In the end there's no rule that says you can't run a mountain saddle on a road bike, so worst case you should get another saddle the same as the WTB you prefer.