Now since TBI fires twice a revolution of the crank it's possible to run smaller injectors compared to a batch fire system that does once a revolution. SO, what is the problem if you were to wire the saturated injectors to fire twice a revolution? In theory you would be able to use smaller injectors and still support the horespower BUT I understand the differences. It's not as easy to compare apples to oranges, saturated injectors aren't used to being fired twice as often and at high rpm operation things could get hairy.
What are the limits in duty cycle for high impedance injectors and what are some other factors I'm not taking into consideration?
This isn't anything important, I'm just doing some thinking outloud so no need to be critical.

 

They fire 2x as often, 1/2 as long.
Net difference is only a slight change.

The suggested operating times are 1-5 msec for P+H, and 2-10 for saturated.

The less often you fire an injector the less critical the PW cals need to be. ie any errors in bat volt etc, are 1/2 the factor as the calc is done less often.

The min operating times, and stuff are all in the code your running