geezermama:Is this even legal?? Can someone please tell me???
By "Legal" I assume you wonder whether it violates your contract with Les Mills (certifier vs. certified instructor)?
It's a very intriguing question. I don't have the hindsight, but it's definetly in the grey area. As a licensed instructor we are not to change the sequence, we are not allowed to make up our own chorey, and we may not alter the chorey. Doing a 45min version of the class is (at least here in Sweden) allowed afaik. To be on the safe side (never having to risk getting your hands slapped), you could try convince your GFM doing the combo class as two different classes but back to back; so the pump-part is a genuine non-altered 45min version, and let the turbokick-part be it's own.
I have an idea that this thread will be quite interesting... 
When everything is said and done; you can say it's easier said than done! :-D