I never used any of them outside, I only ran them a couple times in my basement. The red Bandit does have a bad low gear, but high gear is smooth. I do have another rear end to go with it, I've connected a battery direct to it's motors wires and it sounds fine in both gears, but I have never had it under load to fully test it so I can not confirm it's 100%
The yellow Bandit works awesome, no problems with it at all, it rips! It is missing stickers on the hood, roof, and on the other side of the truck. But it's a super clean truck all around.
I'm only going to sell the Bandits as a set, they look awesome sitting on the shelf side by side. I also have two 9.6v packs to go with them, one is a Tyco and the other is a New Bright pack, both bought new and only used twice. Both of the trucks tires are nice and soft, they also have lots of tread left.
I have since cleaned and detailed them even more and I will have better pictures when I put them up for sale.