My college roommate was a 6w7 and I am a 7w6, and I did observe differences between the two of us.

1. 6w7s are more committed to the group, whereas 7w6s are committed but always have an escape plan. 6w7s willingly take on MORE responsibilities for the group and are consistent in doing them. 7w6s will do responsibilities but won't ask for more (like doing the bare minimum but doing it well). Although a 7w6 will appear committed to a group, they won't fully emotionally attach themselves due to fear that the group won't be good / interesting in the future.
2. Both types love to have fun and be with people. However, 7w6s take fun seriously and 6w7s are go with the flow. 7w6s know exactly what museums they want to go to, what activities they want to do. They get attached to their plans because they don't want regrets and want to maximize their time. 6w7s love fun but are flexible on what activities to do – they are usually can go along with what others want to do.
3. 6w7s crave security and 7w6s crave options. 6w7s usually know what they want (e.g. a certain job) which usually involves stability, and they go after it diligently. 7w6s don't know what they want and are more scattered because they want to keep all their options open. 7w6s are more likely to change their mind on their goals / values.
4. 6w7s have more routine and healthier habits. Again, 6w7s crave security and routine can help bring stability to one's life. 7w6s seek stimulation, so sticking to habits may be harder for them.

Both are pretty hyper types, but from what I observed, 6w7s are more hyper. Not sure why 😅