Here's a good exercise you can do for bending to the correct note. Play the note on the 7th fret a couple of times until it is set in your mind, then play the note on the 6th string and bend it until you reach the same pitch, until it sound like you are playing the 7th fret.


The exercise would look like this

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----7----6b7----7----6b7----7----6b7
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Hope this helps you out.