Mountain bike 45:00 
Testing mountain trikes in Colorado Springs. Tests spanned about 2 hours. No idea what distance might have been. Tests were in a short loop with pavement, fist sized rock, grass, curbs. Pictures are on 2 phones. I’ll get them later.
Azub TiFly X: 3x26” wheels. 1x12 gearing. The handling of this trike was really good. Turning circle 2 3/4 parking spaces. I still find the titanium leaves make more contact than I would like with my calves. 15 years from now it might be hard to get in and out of the seat. Gearing was suitable for off road, but would be a bit low for my tastes on rail trails or asphalt.
Azub Fat with 18 speed pinion. I mostly tried this to get a feel for the Pinion. While the Azub has nice flexibility, I’ve always preferred the handling of the ICE Full Fat. The Pinion has a really good range and the twist grip works fine, even though I’m generally not a fan of twist shifters. My only beef with the Pinion, is that changing it out mean replacing the boom in addition to the drive train - perhaps not tragic, but there might not be a resale market for that expensive component. Range doesn’t feel much different than the Rohloff, but gears are closer together.
ICE half fat: 3x29”. Rohloff + Efneo 3 speed crank. I really liked the handling on this trike. The mild suspension handled bumps well - certainly a different league than my Greenspeed. Turning radius about 2 1/3 parking spaces, which seemed much tighter than I remembered the fat equipped trike handling. I like this setup a lot. This trike, however has a strange seat, that while comfortable doesn’t lend itself to removal. That makes it quite a bit less useable to me. It also has single side braking, which I could get used to, but I have liked being able to brake either side. I’ll price out those changes to see how it compares to doing a new build. I probably wouldn’t spring for the Rohloff at full price. Maybe a 1x12 with a speed/mountain drive or the Efneo, which give less total range but the smaller jumps might be more manageable. I might also go with 650 on a custom build.