I don't know how to get the previous version back.  I think it was closer to the idea than the current version.

I've included snapshots of what I meant.

Set up 1:  At the highest 'k', the block rises to the highest point on the ramp (no friction).
Set up 2:  At a different setting for 'k', the block rises to a different point on the ramp but not the highest (no friction).

These two setting can be the basis of the design.