I am surprised by the question. They work similarly to two Origin Reference Points, meaning the second one is redundant and contributes nothing except for a minuscule file size increase. Collision spheres and accurate pivot points are pretty important imo, especially in competitive play. Misclicking is a thing, especially with slim/petite models. You´d want a sphere covering the upper portion of the model to ensure accurate clicking, and no salty player should be able to blame it on the model. Alternatively, I can approve the model if you want, as this is a minimal issue.