I usually only use the brake to mount when I’m on a decline but I should practice it more. I’m not very coordinated so I find it easier without the brake when I don’t absolutely need it. I made a little video with a few mounts from my first video:
I think it will eventually possible to make very long runs of downhill on a freewheel unicycle but it’s prudent to assume a UPD is always imminent and to plan accordingly.
Similar to my buddy’s suggestion about a 180 unispin, a jump mount is possible but you’d have to be really fast with that hand on the brake before your feet put pressure on the pedals.
I never practiced assisted since I figured there was a likely chance to hit whatever support I was using. Take it slow and there’s less likelihood you’ll fall to the ground. My only experience is on a 20" so your results may vary. Of course I’m also 5’8" so your larger wheel may be more in line with your leg length.
I don’t know if my learning technique will transfer but I suggest starting off my trying to coast a couple feet with your dominant foot on the pedal and your non dominant foot slightly out for balance. Once you can do that try getting that non dominant foot up to the pedal. If you can get it up there regularly try doing two pedal strokes so that you are back in your dominant position and coast just a couple feet. You may find you don’t need this short coasting base with more extensive use of the brake but it may be helpful. I have some related video footage I can post.
