Hello, When playing out I use a SWR Black Beauty and Goliath 2x10. I also have a Peavey TNT 115 that I use for practice at times. I have often wondered what I would do if a situation came about where I would need more volume as I do not have PA support. One day, out of experimenting, I found myself running a line from the SWR's effects send to the Peavey's input. Is this a safe thing to do or can it really mess something up? Thanks for the help.