Cattleya (Laelia) crispa sheath question

[SouthPark]

Jeff ---- sure is remarkable in how the cell making department operates for spikes and buds hehe.

Maybe sunlight duration could trigger it. Would be interesting to see if it's true with some artificial triggering with artificial lighting.

If you notice in advance that the spike is going in some direction that you don't want, then just go ahead to use some hardware.