Royal Jack Automatic

I would make cross wrom fat soft gardening wire or from cotton gardening line and secure all 4 tops clser to center and further from walls. That way you will maximize light ( all works best in the centre and loose power further from it, now your most effective spot is used only for bootom suckers ) and will create less stress for plant from rubbing leaves into walls , plus stems will get extra support ... pull them 3-5 cm closer to center . That i would do ;)