I'm not a new user, but you'd never know it from seeing my results, or listening to some of the questions I ask. Let us be diplomatic and say I'm a dilettante.

I bought the Rain Tool quite some years back, and every now and then, I try it again.  I have no problem making still images with rain, but when I try to animate it, I get recurrent gaps in the rain, typically about 1/8th of the screen tall.  I have tried to follow his tutorial in the Daz documentation (where I originally bought it), and I've asked him for advice a couple of times, but I just cannot seem to figure out how to get rid of the recurring gap between segments.

I have tried following the directions.  I've tried disregarding the directions.  I've experimented with the timing, the placement (changing the XY coordinates of the segments with respect to each other, which mostly causes unsynchronized movements). I have tried scaling the segments,  and tried using three segments instead of two. I've tried parenting two segments together.  That worked fairly well for movement, but then the lower segment would jump back above the camera's view, prematurely taking the higher segment with it before it had sunk into the ground.

It's embarrassing, but it's time to admit that I am an idiot and seek assistance from wiser minds than mine.  Maybe the problem is with the instructions.  More likely, the problem is with me.  If none of you has had any problems with making animated rain, then I'm the problem, but maybe someone can make me understand.  Or maybe you, too, had problems, but figured out how to do it right.

Help me Obi-wan Kenobi; you're my only hope.