If that means nothing (neighbors and family structures) then I don't know what connects people more.
In my case my mother is dhul, my dads mother is dhul, I'm married to dhul, and before my married, when the closest male family members went to her father all of the 8 men had a mother that was dhul from different subclans.
And I can guarantee you, that is the case for many of the HJ subclans living in proximity to the dhulbahante.
I get what you mean. My maternal lineage is Aden madoobe for at least 3 generations so of course I feel more close to HJ than MJ. However this isn't the case for all Dhulbahante.