This is why @iacas has provided guidance on filming your swing here:
I don't know if the information regarding cameras is still current, but the sections on camera set-up almost certainly are.
Did 250 repetitions of day 4 drill yesterday without hitting any balls. Today went to field to hit ~50 and was bit disappointed seeing the left wrist is still arched at the top/early during transition. If something good, my divot pattern starts to go more right, it used to be left.
Work with the drill continues.
"I fear not the man who has practiced 10 000 kicks once, but I fear the man who has practiced one kick 10 000 times." -Bruce Lee
After the instructor told me about the lie angles, I've started to feel bit uncomfortable with my standard clubs at address and contacts are bit toe sided I think. Never thought equipment could make any difference, but think I'll head to store to check what's right for me sometime soon.