Originally Posted by SD.Pump
18v Shredder hopper
Servos are not the same some have hex shafts some have little nubs.
As mentioned, shells not interchangeable but also lids are not interchangeable. The mouth changed size a few times during the decade.
Halo speed feeds fit but may need a bit of sanding or reshaping.
Really the list should start right with the original VL-2000.
The changes since the earliest design have been only incremental.
Also, I suppose the Tripod should be included as it's in the same family.