Lazy Sunday Squats and metcon

Just played with squat form.
3 x 3 x 80kg as I recall and a bunch of lesser weights
12 x 60kg

Tried not to sit so deep that my hamstrings turned off. Also to stop my knees sliding.
Really not sure whether to keep pushing more weight or work on technique.
WTF am I missing?

Then 7 rounds ish, NFT
5 pull-ups
5 ring push-ups, heavily scaled

I bought a chalk ball yesterday as my hands get very sweaty in the heat and humidity we're having lately and I'm constantly having to re-grip or stop so I don't do a Margaret. Worked a treat, but I tore two fingers slightly.