Reply to Rubber/custom Knobs For Nuo 4.0???

Alright So is there's any Nuo people in the house (well, community )? I'd like to know if any one has tried or knows if the custom knobs from tech tools fit on the mixer. i tried by playing around and taking off the EQ knobs from the Nuo and the FX knobs from my X1 but they FX knobs didn't fit on the 4.0. i love my 4.0 but Id rather have thick rubber ones so big ups to any one who can point me in the right direction.