Sorry Mike the Zero shift is simply a method to smooth out dog engagement for a layshaft gearbox, the technology of layshaft boxes is still 19th century, as is dog engagement. The pretty graphics do not change anything.
Most FI boxes use a computer ECU program to take of some torque during shifts.
Developments in this control now allow shift timing as fast as the contact between two gear teeth and the next two reducing torque hesitation to Milli seconds.
A layshaft gearbox has to include a gear pair between the input shaft and the layshaft and another gear pair back to the mainshaft. Also all the other gears in the box are engaged when not transferring torque. This is an ancient and very torque sapping design. Dual clutch/shaft gearboxes are far worse having an extra layshaft in effect. Most hybrid systems get even more complex and drag even more torque out of the drive train.
My Electronic Shift Energy Recovery System can be either a seven speed stepped ratio gearbox within F1 regulations. It can include an integral Kers/gearbox or a full hybrid system or full electric unit.
It has no need for a clutch of any sort and only engages the gears needed in each ratio. In direct top there are NO gears rotating in mesh at all either transferring torque or idling and there is only ONE support bearing.
Control is completely electrical with NO hydrolics or pneumatics.
Just needs a budget???