ZP6 vs electric flat burr grinders (upgrading from Knock Aergrind)

so, I'm looking to get a substantial upgrade in quality from my [knock](https://madebyknock.com/products/aergrind) hand grinder. i bought this cos it seemed like the best grinder that would fit insinde an aeropress for travelling and it does a great job at just that. 38mm titanium conical burrs, stepless, etc.

sticking in the hand grinder world, could go with something like a 1Zpresso ZP6? that seems almost live the unimodal / flat burr and gets rave reviews considering i make almost exclusively light roast pourovers etc.

i'm aware you can get better quality output from hand grinders as opposed to electircs in the same price range but i already have a decent hand grinder. i'm wondering how much i'm gonna need to be spending to get substantial increase in grind quality from what i have. i don't mind slightly janky workflows etc. the main thing i'm chasing is grind consistency. 

is the zp6 really the way to go? does it grind up there with electric grinders twice it's price?