EV 10 how many parallel PST imports for Journal

Hi all.

I am new in EV  and sometimes the easiest  question have no Answer..

I have EV 10.0.4  on a 8 CPU 32GB Server with WIN 2012 R2.

we got 2 TB PST files (each about 20GB) from a customer. They where exported from the Journal Archiv.

Now we try to import it in our enviroment. We use the wizzard which is running fine.

The question is, is it possible to do more then one Import for ONE user  (in this case the Journal)  parallel?
I have no Problem with Performance, i am only not sure if this is working without trouble.  Do 3 Import Task for the same Archiv create deadlocks or whatever

thanks in Advance 

Kai