Done a bit more LST and put together the SCROG net.
I have readjusted my intake fan and it's keeping the temperature at a more manageable 27 degrees.
The net has been there for 48 hours and the plants are doing really well.
I've had to increase the watering to daily now, instead of every other day and they really are responding well.
The lessons learned from the last grow have really paid off this time.
Another week and I may well flip them to flowering.