They aren't as hard to come across as you might think, I've got several (a couple legendary).

Seems you can get two via a battle with Axel and stealing them, and one as a reward from defeating a Diez gentleman in the post-game. I think the reward one is always legendary too.

You can apparently re-battle the diez gentlemen every time you cycle over into the post game (I thought you couldn't, but it happened to me, which was annoying TBH).

Do a few battles until it says he appeared.

If he can't be found, save and when you exit the save menu, he should have moved to a hopefully more visible location.

It's best to use the puppy paw stick to you know, steal uber items.

It's the best way to get a large number of specialists too.

Since Staticians Stack, try to get a few of them by reverse pirating, and then copying a ton of those (once you have a level 300 statician, you can keep cloning them until you have a dozen or more, to level up insanely fast).

Yeah, one of the more recent patches made it harder to encounter delinquents. Same thing happened to me dood, I didn't get into the Class World until after the patch came out, so yeah, instead of encountering a half a dozen or more per visit, I was lucky to get more than a couple/few. And you only have a 20% chance per delinquent, to dupe the item.

So be sure to only equip the item you want to dupe, on them. And Perhaps level an item so it has a good number of slots to hold specialists.

Lucky you!

I got 3 once, possibly four, but oftentimes I just had to retry. I eventually just kept reloading if I didn't get a duped item in the first couple of stages.

You mean them wielding the stick, or them being the ones attacked?

Probably a coincidence, but maybe I should try it out if I remember....