[Closed] New seat clamp, do I need to extend the seat tube slot?

Was having trouble with my OneUp dropper moving in my frame and then binding when I added enough torque to stop the movement.

I found someone who made me a lovely double bolt seat clamp. It's 25mm long and goes right to bottom of the seat tube slot though.

Should I extend the slot or does it not matter too much?

Guess they are longer than the clamp for a reason.