Was able to make a little more progress on the Bulldog.

I taped the weights in place. The goal was place the weight as far forward as I could to get the most out of the balancing weight.

Because I don't want the control board bouncing around inside the tank, I found a way that I thing will work to hold it in place above the weights and allow air to move around it. Hopefully, it doesn't end up too close to the upper hull. Anyhow, I glued a three thumb tacks so that they fit inside the same posts that used to be the screw posts for the RX-13. Just put the thumb tacks into the posts, put glue on the back of the thumb tacks and put the RX-18 box on them positioned the way that you want it to sit.

I also want more air flow in the rear of the tank. I have some 480s that I want to use with the steel 3:1 gears that I got a while ago from RCCommand. But, I need air flow. So, the first step is to open the engine grates more. I've finished a few of them. I carved a little of the plastic away and the ran a micro-file through them to give them some semblance of uniformity. You can see the before and after in the photos. I finish the rest later. Next goal is to find a way to install a fan under the grates to draw air (and heat) out of the rear of the tank.

Comments are welcome.