On the same website as Tolmie’s dissertation is a ThM thesis on Galatians that he supervised. The thesis proper is a whopping 246 pages so I am glad I did not write my master’s thesis at that university. Song does not reject the New Perspective but calls for a slight change in its understanding of justification in Paul’s mission, especially as it relates to Gentiles.
Jae Young Song, Rethinking the New Perspective on Paul: Justification by Faith and Paul’s Gospel According to Galatians. Bloemfontein, South Africa, 2006.