1) He's more qualified than you, even though he's less experienced.
2) Being less experienced, he's more qualified than you.
3) He's more qualified than you, being more qualified.
Reading your post, I have some questions.
I don't understand what you want in the first part, Pastel. Only (1) makes any sense; (2) and (3) are grammatical but irrational. PP phases don't have to be fronted, they just have to refer unequivocably to their proper referrent.
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