What's the difference between 2 similar but very different wheels introduced 40 years apart? Both have square treads, both are popular on the Frog, Grasshopper, and Hornet, plus both have legions of enthusiastic fans. We spin our heads right round to give you the differences between the Tamiya BRAT's Sand Blaster squared tread hard tires and the Sweep Racing pink Square Armour soft tires (made harder by hard foam inserts) and which one is made for the backyard or park and which one is made for perfectly manicured race tracks in this episode of the RC Deep Dive podcast.