First, the stock taigen V3 control unit will give you much better control than the Heng long unit and it's a cheap option. However, your best bet is to go with a hobby grade board like a Clark or an IBU. The difference in control is just amazing. The Walker Bulldog is, in my opinion, a really nice little tank that gets overlooked by quite a few. When I get home from work I'll post a couple videos of mine because I've done something unique with it. My m41 has two different Hull tops. One is stock and has a regular tank turret, and the other is one that I converted over to a quad 50 anti-aircraft tank. The tank runs with TG ball bearing gearboxes, 380 Motors, with metal tracks and sprockets and with the Clark tk20 it really, really runs great. If you want to maintain accuracy, you don't want to change your tracks. I know the other tracks can grip better but they are historically inaccurate and that's why I stuck with the stock m41 tracks in metal.