The absolutely miniscule transfer radius between players (your name needs to fully overlap their name) was manageable in old strategus. But it has become a nightmare of micro-management with a 75% speed reduction. People constantly have to check on the hour if they moved that inch toward their ally and finally succeed after 4-5 hours. Creating chains of supply lines is still preventable if we just increased the radius by 100%. Doubled radius would allow trades if their names are touching, which is a fair tradeoff for 75% speed reduction that you get doubled radius.