I KNOW they have the wrong cable pull, but set up incredibly carefully they will work fine as the difference in cable travel per unit of lever movement between the two is only 18% - it's not utterly irreconcilable, like mixing Shimmy mechanism with SRAM levers.
My Max Cromo frame was built up from scraps and ran Deore Vs on Altus Canti levers, and to this day it still is with its current owner. It Not something I'd generally recommend, but if you're skilled at setting up brakes and don't skimp on decent cables then it achievable, if not really desirable. Oh, and you need rock steady straight wheels because you need to run the clearances nice and tight.
To say it impossible, or it'll automatically feel like crap is poppycock - a sweeping generalisation too far. It's probably not a good idea, but with skilful setting up its achievable. Alas, most cable brakes I see look like they've been set up by someone wearing oven gloves, so I wouldnt suggest the average rider triee it.
I'm scrabbling round for bits for my Bear Valley so may pull the same stunt, at least temporarily. You're not a million miles from me, so feel free to pop in and I'd be happy to show you how to do it.