So I tried to pull the 10th scale pan with the 4206 today... on the cement, no problem. But in the dirt it struggled to pull it empty! The tires on the pan are made from, I think it was delrin, it didn't want to roll in the soft ground. Loaded up, 4206 couldn't budge it... I had to push with my foot & push quite hard to get it to move.
Only the 10th scale dozer will ever pull that massive pan.