Klann's Mechanism Reconfigured for a Higher Step
As shown below, Klann's step-height can be increased by moving the lower rockers and the lower frame connections toward the center by 1 LEGO hole.
The following images show making this hi-step modification to a Klann Ver 3 build.
Flip the robot upside down to make it easier to move the lower rockers:
Make sure to move all four lower rockers before re-inserting the metal rods.
Do the same on the other side of the robot: