Has Anyone Actually Switched Invisalign Trays Early?

The body has to go thru a cycle of healing and repair. If these times dont happen cell death and tissue damage can occur. Dr. will set the timing for you and tight and losose times are normal and need to occur

Following your dentist's recommendation would be the best move.
For many years, Invisalign recommended changing trays every two weeks. However, research showed that weekly changes is successful in many situations, and Invisalign (in recent years) changed their recommendations to allow weekly tray progression.
I typically prefer weekly tray changes for 3 reasons: 
(1) I design tooth movement for weekly tray changes. Orthodontists work directly with Invisalign to determine the exact tooth movements in every tray. I prefer weekly tray changes, so I make sure the amount of tooth movement set to be accomplished by each tray can actually be accomplished in one week.
(2) Patients like a new fresh set of trays each week. Even with perfect cleaning protocols, trays after one week of wear are not as pristine as when they are taken out of the packaging. A new set of trays is refreshing.
(3) Changing the trays weekly allows for easier planning for patients. Changing your trays every Thursday night is easier to remember than changing your trays every other Thursday night.
My main goal is for orthodontics is to be easy, predictable and successful!

Thank you for your great question.We used to recommend to switch aligners after 2 weeks. Based on the research, recently recommendation was changed on some cases to 1 week wear. Only your treating doctor can determine if your case is appropriate for a shorter wear. There are other techniques available on the market, which can expedite treatment time. AcceleDent or Propel, for example. 

You may change your aligners on a more
frequent basis if your doctor recommends that you do so. Switching too early
can cause the aligners to not track on the teeth and may increase the treatment
time significantly.

I actually have a number of patients in treatment who switch their aligners every 10 days.  Those patients are usually wearing orthodontic elastics in conjunction with Invisalign to correct a bite problem.  They are also strongly advised NOT to move on to the next aligner if the previous one does not fit like a glove.