Hey jam2764'
I am going to grow my mother plants indoors untill about 2-3 ft tall, then transplant outside when outdoor sunlight is approximately 12/12 to start them flowering - probably around may where I am at in Northern Cali.. I think it is a good idea, just make sure your mothers do not get root bound while vegging inside, use at least a 3 gallon pot for each, then transplant into big holes full of prepped/conditioned soil prior to transplanting.
Good Luck!
Uncle Steve