Hey guys well let me say oen thing. Bio is not my strongest points im not bad at it but im not amazing either. For the DAT i used the Destroyer and Kaplan for Bio. The Kaplan gave a sufficient backgroudn of the material. Then i started using the Destroyer and even though the questions were difficult the explanations i found to be great. Either way on test day about 3 weeks ago i was terrified about the Bio and Pat. The PAT went terrible but surprisingly enough knowing the Destroyer bio cold and kaplan stuff i got a 20 so i was very happy. You shoudl definitely keep up using the bio for destroyer, because that is what brought me great grade, but use supplemental info as well to be on the safe side.
Gluk to you!!