There seems to be a line between too much defoliation making them stretch more and just enough defol that slows them down, cutting back on the N in the stretch helps too.  Super cropping works but it expands the foot print needed or they can form a SCROG like canopy that blocks the light to the lower bud sites.  You can double super crop and make the branches like a dog leg to reduce the height too but I think that may block the flow a bit.

The stretch in RDWC has been a battle for me, I have had Autos go 5X and it wasn't pretty. What I do now is lollypop the bottoms before the flip and kind of crush the top buds a little by pinching the ones getting to tall with my thumb and finger.  I dont know if it hurts anything but it keeps the buds out of the lights.