First Grow Ever, trying out Apple Betty

First time grower, trying out this strain because it seemed pretty straight forward. Taking its time flowering, really slow anyway. Ph in the soil is quite high, which may be the cause. Have dropped the water Ph down to 5.8 when feeding and have given it a dose of Aluminium Sulphate. Mostly focused on LST after topping once, trying to keep all the bud sites at the same height by pulling branches down using garden ties and a trestle.