Glitch → return-to-path with curl noise

[alexp]

if you want a soft transition to a Custom TM you need to use "stop" operator before.
basically you want to disable all forces/velocitys to match your stored TM. you can also use one (or several) "slow" operators to define the timing for the transition.

Makes sense, but Im not sure how to make this work. 

Conceptually it should be a base tyflow with slow moving noise, and then a second tyflow that births from the first flow and inherits the motion.
Then the second tyflow has some animated noise strength to add a layer of motion on top of the base layer.

But, how do I store the frame by frame TM of the base layer and then use it to find target in the additional layer, but only when its off target I guess?

So as soon as the particles have been glitched off track, they try to find their way back.