I don't know about Pooleys, but I too am an ATPL(A) doing my PPL(H). I bought Wagtendonk, and read it cover to cover once. The weather was bad one day a month later, so I thought what the hell, I'll try the exams. I passed them both, so the book must have been adequate.
The only thing I will say about the book is that the author clearly does not know what the coriolis effect is. He seems to think it is another name for the conservation of angular momentum.