I haven't found my Aurora Indicas to be short! Mine are huge, and that's without stretch. The leaves are the size of a saucer. The males were twice the size of the females, (good information for me--the males started out that way too--just BIG and grew like wildfire, made the females look like runts.)
I had to LST and supercrop my Ai's heavily. So now instead of tall, they are fat and wide. Great plants, hardy, hearty, lush. Good luck with yours!
For a complementary grow, I have Hawaiians and Wizards growing--both very old indica strains. Grow very similar to AI's--broad leaves, stout and not much stretch.
Good luck on your grow! I'll be watching. Love the AI's so far!!!