Need help playing with arcade stick

well basically iv been playing overall for 5 months of my arcade stick but im still finding it hard to do dp from the left side… however the right side is so perfect i cannot miss it…anytips?

also does a sanwa joystick really make a major difference then a madcatz se one? and is it better to get a 8 way gate as im more of a Ryu player or is it better to stick to 4 way…

all advice will be appreciated
Thanks guys

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