Help a Cascade newbie create a simple shock wave FX

Tzur_H

Hi guys, I'm trying to create a shock wave effect. Here's what I have at the moment:

These are just 2 simple shock waves that go out from the blast location, I'm trying to create a similar effects but that goes inverse, from the outskirts - inwards.  How do I go about doing this?  I've tried so many things, the cascade is a bit daunting with the amount of parameters for each  :silenced:

Tzur_H

Solved it.  Had to remove the Velocity from Start Height on Cylinder, then I used a Point Attractor and Initial Velocity to drive the particles in.

Tzur_H

New problem I'm trying to solve; is there a way to rotate the "Cylinder" emitter shape around its origin?  I want the whole shape to spin around over time as it comes inwards, not every sprite particle by itself.