I have the new LocLine and RFGs ready.
The new larger longer RFG nozzles are on the left. With these larger scaled LocLine segments, and the improved bore in the RFGs, the reduction in flow from the return pumps is only about 10%, which is much better than the originals I made, and they work great. I held my hand in front of them and felt the changing flow patterns.
Only problem is, the Venturi effect is so strong it's pulling air in from the surface in loud sucking tornados! I'm going to have to print one more segment for each side to put them farther down under the surface...
I played around with those and ultimately removed them. To keep the air from pulling in you have to put them low in water. At that point I was afraid that water would siphon when the return pump is off and overflow the sump.