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this may be more helpful -
https://www.lfgss.com/conversations/233988/?offset=1225#comment12956588
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How easy is it to get the right form if doing it solo?
If you've never lifted before, someone to coach you on your form would be a good investment, but not necessarily essential.
Starting light means that you'll get away with poor form initially. Once it gets heavy you risk injury and the longer you lift badly, the harder it'll be to break those habits.
But take advice on who you take your advice from (whether it's written, video or in person). One of my customers is a PT, but that's not what I pay her for: she's a powerlifter. I only see her every month/six weeks to check my form.
And she was enthusiastic about Stronglifts when I asked her about it.
I have posted about it in this thread but I cannot seem to find the posts ATM.