I have tried a few ways of recirculation, all of which seem to be a little more work than they should. I'm considering using direct pumping, but I'm a little apprehensive. Don't want to cause a stuck runoff.
Put a ball valve on the output of your pump and recirc for 10 minutes at the end of mash. Or use your immersion chiller as a herms setup and recirc the entire mash time. Never had a stuck mash with the restriction at the pump output
I'm not sure exactly what you are talking about. but if vorlaufing, I crack the valve just a bit and drain into a clear plastic 2 qt. pitcher. The wort usually runs clear before the pitcher is full. I carefully pour it back into the tun and continue.