The closest I've been to FIM was a mother I revegged for clones of an awe inspiring indica.
I just put it back into flower(to smoke it and kill it), and I'm realizing why I wouldn't FIM.
I let her veg for about 1-1/2 mo's and now I have this huge clusterf@ck of budsites(that grew from the larger nug I left). I'm sure I'll run into trouble now keeping the buds apart enough for good airflow.
I should have vegged her another 6-8 weeks and did some serious pruning and LST'ing to separate the sites, but I needed her gone from my veg room(room for all those clones). I'll make a new mommy now. And LST exclusive.