New concept for extenders

I recently created a new idea for creating piston extenders based off of slime blocks. It started with this small concept shown here This circuit seems ordinary, but when you power a single piston, this happens: The piston gets lifted up along with the other slime blocks. The second piston can be powered for a whole 2 blocks extension, and this can be hooked up to an ABBA circuit to create a double block extender fairly compactly. I then started working on other designs and ways to expand this. I diverged and tried to create windey designs and got up to 5 blocks with that. Eventually, I settled for one design that could expand 6 whole blocks, encompassed a small 3x2x3 area when retracted, and would retract faster than conventional extenders. Remember that this is without an ABBA circuit to go with it (necessary for proper retraction).

If someone can find a way to add an ABBA circuit in a compact manner in order to make this compact, this could be a useful extender seeing as this is possible both vertically and horizontally.

Figure this may be useful for someone, and I hope someone better at conventional redstone than me can fit in an ABBA circuit.

image formatting fixed by hacker