99th %ile on HemeOnc Step I
But I authored the firecracker section on HemeOnc all of last year.
What I would recommend if you want to get those minutiae questions correct is read the white blood cell disorders chapter from the latest version of
Big Robbins. AFTER you do pathoma and whatnot. The red cell chapter is a little less helpful.
If you have firecracker and they still have the sections I wrote on the leukemias and HL and NHL, ALL, AML, CLL, CML, and the others, I would say I packed pretty much everything you could reasonably be asked into those sections.
For some of the disorders of coagulation, it would help you understand as opposed to memorized how the coagulation cascade works. In fact, really understanding it will help you in a lot of areas in the future as well. This book is particularly helpful for getting the basics necessary to understand things like thrombotic microangiopathies and DIC:
Clot or Bleed (and its written for medical students).
It is crucial in this section to have a thorough understand of primary vs. secondary hemostasis or you will just get destroyed by questions related to TTP, ITP, DIC, vWD, etc.
Also it should go without saying but definitely study the pharmacology for this section hard, because a good deal of Heme/Onc Step I questions ask about specific treatment or how drugs work.
Lastly, this is kind of a nerdy recommendation, but it helped me greatly is to memorize the reference range lab values (goes for electrolytes and CBC values). Know a hemoglobin of 19 is high without having to look it up, a hematocrit of 20% is low, WBC ct of 16,000 is high, etc. Can't tell you how much time it saved me on tests and Step I in general to never have to open the lab values thingy.