Free new Oncidium growth from leaf?

[Dusty Ol' Man]

Originally Posted by lobotomizedgoat

I picked up this lovely hybrid at Trader Joe's in early September. The last few buds are just barely opening now but it has already put forth a new growth off the primary pseudobulb. I'm assuming that it is a new bulb.

Should I cut the leaf now or wait for the new growth to cleave it on its own? It seems a bit fussy, but I don't want to deform any new growth if I can avoid it.

Plants in the wild don't have anyone to "cut the leaf" for them, so they must not need us to do it in our collections. I've never heard this before. From where did this advice come?