Our team is considering the ability to change the top part of the robot out by basically plugging in a new top and removing the old top from the chasis. We would determine before the match which one to use based on our opponents ability. These would be pre-built and modular so we can switch them out with ease. This is technically not using a secondary bot but switching out a major component on the same chasis. If we get all the possible configurations inspected for size in the beginning is this an ok strategy?
Yes, as long as all configurations are inspected and meet all Elevation requirements this is okay per the Robot Rules.