#1
For chords that are like

d --8
a --6
E --4

What sort of techniques do you use to get that stretch from your fingers? The only way i can reach it is if i plant my thumb firmly on the back of the neck and bend my wrist forward. This kind of puts strain on my wrist, so I'm wondering if that's bad or is it something ill get used to?
#2
play it higher on the neck and work down to it so your hand stretches out and doesnt get hurt.
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#3
I do it by placing my thumb on the "top" of the neck - very close to the place where the neck goes over to fretboard on the side (edge) of the neck facing away from me. Unless that's what you're doing now.
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