Is the PT Unscored Section Unfair/unhelpful for Practice?

I'm taking the August exam, which includes practicing with sections of LR, Unscored LR, and RC. However, I consistently perform better on the scored LR sections than the unscored ones. As a result, my overall practice scores are lower. I feel like the way they write questions for the unscored sections isn't helpful for preparing or estimating how well we'll do on the actual exam in August. Anyone else feeling like this?