question on black raspberry (and blackberry) propagation

I have a black raspberry bush that I love (although it has a tendency to grow like a maniac). It's to the point, again, where I need to trim it back a bit to keep it in shape (and better berry production). I know that if you let the canes bend over and touch the ground, they can root that way (tip rooting). It also sends up new plants a ways away from the plant in the spring (and I've got two I'm growing from those, the others didn't survive the transplant). I'm wondering if there's any way I can take the cut tips from pruning and plant them and have them grow roots? It would be the easiest/fastest way for me to get a bunch of plants if it works. If there's no chance for it to work, I won't put in the effort. But if there's at least a 50% chance, I'd like to try it.

Same question with thornless blackberries. I got some blackberry starts that are growing like mad (hope to have berries next summer). I've read that they should be trimmed back to about 3-4 feet and these have grown bigger than that. I'd love to try to root the cut tips if possible. Is it possible?

I have at least one friend with an acreage who wants to have a decent sized berry patch. I'm thinking if I can propagate some of my stuff for her, she'll let me come pick some of the berries.

I would try, since you will be pruning them anyway. I would worry more that the prunings might be the wrong age of wood to root.
I think I would add rooting hormone to the test.

To reproduce by tip, allow the tip to touch down, but put a pot of soil there. Hold the tip in place with a hook, bend over coat hanger, or a rock. Whatever works. Then make sure the pot of soil stays moist enough to encourage rooting.

I have one that I'm going to root tip (it's grown through the fence from my neighbor's and rather than just cut it, I decided to tip root it. I'll have to see how much more potting soil and pots I've got left. Since my yard is relatively small, I've got lots of things in pots.

When I grew black raspberries I would bend the long cane to a location in the row I wanted it to root and weigh it down with a rock. If it was already rooted in very good then I would cut the cane and let the daughter plant grow some more before moving it. Check YouTube out on raspberry propagation.

I am tip rooting one, but don't really have room to do it with others (they'd be in our yard rather than my berry patch).

I filled a pot and buried one tip in it so it can be moved later. Potted up 5 cut tips from pruning (we'll see how they do). And put 5 cut tips from pruning in water, just to see what happens (maybe I'll get lucky and they'll grow roots).

I'm not banking on and except the first one actually working but it the others do, I'll have plenty for my friends.