@Dannydefe: There is no math change.
@A2: There is no math change. :-) Remember the shoulder offset is the perpendicular distance from the screw to the arm/shoulder bolt. (For a visual, with my design what would change if you mounted an arm on each side of the shoulder.)
The pickle fork would require a whole slew of cascading changes that would result in a design dissimilar to LISA. There is nothing wrong with that but unless I missed something the complexity surpasses a Rostock. At that point I would suggest a Rostock with some LISA arms attached.
@A2: There is no math change. :-) Remember the shoulder offset is the perpendicular distance from the screw to the arm/shoulder bolt. (For a visual, with my design what would change if you mounted an arm on each side of the shoulder.)
The pickle fork would require a whole slew of cascading changes that would result in a design dissimilar to LISA. There is nothing wrong with that but unless I missed something the complexity surpasses a Rostock. At that point I would suggest a Rostock with some LISA arms attached.