Interesting last week, with a heatwave with temps as high as 31c had real trouble keeping the temps down in the tent, dropped the lighting to 18-6 just to cope with the temp issues. Can see a slow of growth matching this drop by the end of the week.
Slower growth but still steady bud weight development. Lights were also raised to 25" above the plant to counteract heat.
Slight nute def on one lower fan leaf which looks more like nute def than ageing. Attributing to the half dose ive given due to worry about the double feed last week. But nothing major. Expecting this to run to week 10.
I’m growing the same strain. Really easy for beginners. And as you say, it can improve much the yield by some basic LST, as I did. Since you break apical dominance, brand new long nice buddy branches emerge...I’m very impressed, even if I still learning how to do LST properly. All for the best.