oh, I left one without any defol for a end comparison on yield.
While I've not done that little test myself, I've seen it done quite a few times.
I suspect you be doing regular defoliation in the future.
I defol in a random/organic way. When I dig into the bloom or veg room for any reason, I keep an eye out for fan leaves blocking lower growth and pull them as I run across them. It's less dramatic and I don't feel so bad about doing it.