A small 25 would be awesome, or a 25 Insingo. I'm really drawn to the Insingo blade because it looks like it lends itself to cutting cardboard very well and I like the stout tip and swedge. I guess it's hard to perfect on the 21 though, so maybe they don't need to make a new one at all. But if they did happen to make a new one, I would prefer a pivot bushing like the 21 has. That's really the only thing pushing me from the 25, other than the fact you can't get one with Insingo.