Is the watering new growth on Catasetum rule an urban legend?

[Keysguy]

This is "Fdk. Midnight Lace 'SVO' X Ctsm. Frilly Doris 'SVO'".

Background- I bought it from Fred, along with a few other crosses when he visited NH 4-5 years ago. It lives in the Keys and is a late summer/early fall bloomer so I've never seen it. DUH! This has reached the point where I divided it this year because it had 2 nice new growths coming and was just getting too big. I figured it would be a good experiment to bring one of the divisions north and see if I could coax it into blooming here for me under my new basement light set-up.

Status(Pic 1)- So, it's been 6 weeks now, 14 hours/day of fairly high light, daily watering, nutricote on 3 levels of the pot, nice 24 hour fan airflow. The pseudobulb of main new growth is getting nice and fat and the foliage is clearly healthy.

Question(Pic 2)- Well, lookie, lookie what's started happening here within the past week- 10 days!!!!!! We have not 1 but 2 new growths starting on the way back bulbs. I've been watering the hell out of it from before they existed right up through today and not only have they not died, they're growing like crazy.

So, what's everyone's experience with this "if the new roots aren't x inches long before you start watering you'll kill it" rule? Anyone else seen what I'm experiencing here?