I had the pleasure of watching Mo fly the Thor on many occasions. He was a Golden Glove boxer during his competitive CL stunt years, and he had reflexes that were simply amazing; matched only, I think, by Gene Schaffer. He would fly decidedly under 45 degrees and had corners that were among the best ever. The Thor was a match for Mo's flying ability and it turned and locked extremely well. It was light, too. He was a disciple of Harold Price, one of the best at building light models.
I have often thought of building a Thor for Classic competition. It's a great choice; go for it!
Bob