I have about 15 black locusts in pots from seed. Waiting for them to develop a bit more before I plant them out. I have four I got as bare root last year that are all leafed out again. Deer cleaned one off and stunted it a bit last year, but it's fine now. Just shorter than the others that are in the 6-9' range.
Thorns? Yeah. I grew up with REAL thorns so black locusts are kinda tame
I haven't tried doing hardwood cuttings so far, but could soon. Did put in ten or so willows from cuttings. They are so easy it's no fun. Hoping they will penetrate some compaction from cement trucks just off my back porch. Once they grow a year or so I'll chop down some. Probably let at least one survive, but try to keep it pruned to a smallish size.