Autoflowering plants on 12 hr light cycle during flowering?

I have one female plant that is about 18inches tall (Skunk No. 1) and 2 autoflowering roadrunner No.2, these are only 3 weeks old but growing nicely. They are all in the same room and I am wondering how well will the would flower under the 12 hr light cycle. Anyone tried this before?

Anyone have any expirience with autoflowering plants?

yes people have had to do this b4 because they auto flowers whernt really auto's and were not flowering under 20/4. it should work out okay tho ...u might loose some yeild tho

Thats what i though would be the case, cheers for the info. The autoflowering plants are roadrunners and I hav heard of a few success storys with them so hopefully they will be autos. We will find out in a couple of weeks!