I can't say I ever found a truly realistic complete practice test. Arco's book sucked. Barrons was alright, but I think the biggest proablem was the books i saw didn't give a scoring guide, so even if you got 35/48 right you would have no idea where you stood. I took the collins course and those tests were about as realistic as it gets but alas there was no scoring guide for his either. I did pretty well on average on his though, ranged from 48/48 per section down to 37/48. (remeber 8 questions are experimental questions on each section so they dont even count).