1. The default question pack can not be deselected or deactivated. You will need to go through it once before you start working on the QPack 1
2. The Reading Comprehension questions in GMAT Prep 2 practice module are not grouped with a given passage. If you select 5 questions to practice, you may end up working on 5 different passages. This is not helpful at all!
The problem could be solved by providing a separate slider to select the number of passages to practice with. In this way all the questions for a given passage will be grouped together, just like the exam.
I haven't tried the integrated reasoning, but I think similar grouping mechanism should apply to IR too!
So,If i understand this correctly,you might solve for example the first 15-20 questions and when you move on to medium difficulty questions you might get a harder question but with a text you have already read in the easier questions???