sirbuildalot
Addicted to ArboristSite
I think it all comes down to how you plan to use the splitter. The forces add up fast when you increase the height of the wedge and ram. I made a removeable 4 way wedge for my original SS (modified J model). The wings and additional top wedge were set back. (check out the youtube video)
I currently have an SE that is mostly stock and a J model I converted/ built into an SE and has a 4 way box wedge (basically 3X SS wedges.)
Last I knew the pinions and beam are the same for all models. The SE gets a wider rack. The SE has an extras stiffener on the back side of the wedge.
The beams are all the same. The rack for the SE is wider, but they stopped the re-enforced wedge on the SE and went to using the same wedge on all the models.