I know I will not be the only person thinking this and I don't want to come across as a prick given the situation you are in but: going up the inside of an HGV at a junction is always a bad idea.
@deleted started
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I know I will not be the only person thinking this and I don't want to come across as a prick given the situation you are in but: going up the inside of an HGV at a junction is always a bad idea.