I have a copy of this book. I have corresponded with Steve Anchell, the author of this book.
I think that
1 unless you are so sophisticated in your current black & white film developing, and your technique is so consistent, reproducible and impeccable, but you are not happy with your negatives.
2 unless you are willing to import chemicals from overseas with great difficulty (nowadays, after 9/11 every white powder is supect, but fluid=heavy=cost a lot to ship)
3 unless you are willing to make multiple comparisons of the same film, developed in the same developer in various concentrations, durations, temperatures, do densitometry, and then repeat the process with another film and developer etc etc
4 or unless you are just plain interested from an academic point of view,
it is better to stick on to the current developers available in Singapore.
Desmond practically use rodinal for everything. But he is not too bad heh?