Simple character was made because it is least likely to break due to engine changes, it doesn’t touch anywhere near as many base character systems.
The VRCharacter is a near total re-write at point and adds dozens of new features, I suggest using the VRCharacter for people just using the plugin, but for making your own off of it, the Simple may be easier to grasp?
Capsule resizing over network is the same cost for either character, it is re-creating the capsule on the physics scene so its a static cost. If the collision shape wasn’t a capsule we could just scale the thing in Z to resize but the caps would be warped as is so we have to re-create it.