A short primer on pre-caching (or pre-listing) technique

I think it the answer from the RC may be silent unless you add -v to the remote control line. But then it should answer "OK" when the operation is complete.

I would just recommend you just wait and get those scripts I promised you here:

That should be ready-made to work in a fairly intuitive way.
I know I am late on this, but I have not forgotten. I've had to deal with some health issues the last days. Starting to feel a little better now though. I will make an effort to get it done during tomorrow - and if for some reason I am unable to do the things I wanted I'll just dump you the scripts I use as-is. They work fine already but I wanted to clean up some rough edges so they are easier to use on any system - not just my spesific setup.