Ask a Grockit representative

I recently signed on to the grockit site and have since gone thru several problems, and, as a result, I have come across a few questions.

First, related to the "quests:" I have gone thru 2 verbal quests now and received a 66% on the first quest, getting something like 7/12 correct. Since then I completed quite a few verbal questions and took the 2nd verbal quest, and got only 3/12 right but was in the 87th percentile. My thought is that the questions are clearly adaptive to my skill level based on the history of my performance but, can someone please verify this for me, and maybe explain more so how the quests function.

Also, at what point, am I able to try another verbal quest - the last one indicated the number of questions to be completed before it was available, which is not the case currently.

Next in terms of the question types/content, etc, is there a way for me to get thru all the question types so I can comprehensively assess my weaknesses, in order to tailor my studies? Or, is this already occurring while I attempt more practice problems?

Thanks in advance for your input!