I wouldn’t let them chase it out. Chasing isn’t so much about dominance, it’s mostly aggression. Too much chasing can escalate in to a serious fight.
For example:
I would squirt mine with a spray bottle when they started to chase each other. If I did it within a few seconds of the chasing starting it would break up quickly and they would stop. If I waited too long they zoned out and were mentally in “fight mode” the water didn’t phase them and at that point and I had to physically break up the confrontation.
Humping is alright, it’s how they establish dominance. If you notice the bunny being humped getting agitated gently push off the humper to try and avoid a confrontation. A successful humping can go a long way but a fight afterwards can set them back. Never let them hump backwards as it can result in injury.
Sometimes the lack of traction can cause them some stress which can be good during bonding. But if it’s more disruptive them helpful then mats might help.
Have you considered stress bonding at all? It’s very helpful tool during bonding that can help when rabbits are aggressive. It helps them see the other rabbit as a source of comfort and curbs aggression so they can spend time together when they would otherwise fight. Here are some stress bonding methods:
A car ride. You need two people for this. One person to monitor the bunnies and the other person to drive. You put them in a box together and drive around for a while. This should stress them out and cause them to look to each other for comfort.
A box/small container/laundry basket: You put the bunnies in the container together. You can drag it around the house, jostle it, put it on the washer/dryer/etc… to induce stress. Loud noises/music can help too.
Avoid ending sessions when they fight. If they fight, stress bond them, even if you’re not stress bonding during most of a session. Separating them when they fight can encourage more aggression. It teaches them that fighting/violence is how they get what they want (the other bunny away from them).
I recently bonded a trio and I kept up a thread about it. If you want to take a look and see some of the methods/etc… I used I have pictures and some videos over there.
https://binkybunny.com/FORUM/tab…fault.aspx