Feedback Send/Return - what am I doing wrong?

[Random Hero]

I've run out of blocks horizontally so I want to add a couple more on another line and use the send and return blocks but I can't seem to make it actually work? I've put the send at the end of the first chain, and the return at the beginning of the second, but nothing?

Can anybody help?

 

[chris]

Turn up the return level.

 

[SASouth]

Yep. That one will get you every time.

 

[Kamil Kisiel]

I saved my feedback return block in the block library for this reason.