First thanks to CA for the amazing balance changes. Tho some things were done in different ways than I would have many of the things I was focused on before the patch notes seem to no longer be an issue.
So I noticed in the patch Grom the paunch got a weapon length increase.
"Grom the Paunch
Melee Weapon Length changed from 5 to 8"
It seems this might be the right change to fix the issues the Dark Elf Master on Cold One Chariot suffers from.
The master on cold one chariot currently has a weapon length of 5 and his rider is unable to swing at targets where other melee chariots with a smaller distance from the front of the chariot to the rider don't have the same issue.