Thanks Adrian!
The best time to fix my squat would have been months ago. The second best time...
I found this very interesting tutorial on squat depth: Let's get to the bottom of your squat! - YouTube
I've been reviewing the few squat videos that I've made (80kg, 95kg, 110kg) and it seems to me that I need to set my knees better, stretch my adductors against them, and learn to recognize how the "bounce" feels.
On the 80kg squat I know that I hit depth because it was green-lit at a meet. I don't think my form was right then either though: I was just able to grind my way out of it at that weight. Since then I think I've been stopping myself short because of an instinct telling me I won't be able to get back up if I go lower.
Bill has been pointing out my collapsing knees/adductors and I think the Paul Horn tutorial is giving me the tools to appreciate that.
I wouldn't hesitate if this were in-person. I'm even tempted by the upcoming London workshop though that's about ten weeks out. I'm not very enthusiastic about trying to do it over zoom though.I have worked with an online SSC myself and it was worth every penny.
Maybe it's time to ask the friendly people at the local powersports club if someone can help me out. They seem to know what they are doing, one of the young guys there even set a new Swedish record on squats the other week I believe.