I’m considering taking the WH SATII in the spring. My school has an honors class for sophomores but I asked my teacher and he said it may not have been rigorous enough to prepare me for the subject test. Would studying APWH material & buying the College Board study guide be enough to prepare me?
Get the Barron’s book. I self studied with it for a month and found it very useful and thorough. In two days, when scores of the December test are coming out, I will know for sure if it proved to be a recipe for success 
Thanks for the advice!