That is an interesting option, but I think the reason beind limited testing time is because you will have limited testing time on the SAT. The SAT Practice helps you prepare for what it is going to be like on the real SAT, so full testing time would not really help you get ready for testing day.

But, everyone learns at their own, unique pace, so I fully support you getting the extra time to fully benefit your learning. Maybe Khan Academy will add it :)

Hi meadowswd,

This article should answer your question:

https://khanacademy.zendesk.com/hc/en-us/articles/225827268-Can-I-get-extra-time-for-SAT-practice-

Hope this helps!