The only consideration I have in using multi-wire circuits in a RESIDENTIAL kitchen installation is to not split the circuit in a 2gang receptacle outlet box. Something about the combination of 240volts, water, and the hapless homeowner doesn't sit well with me.
If you need to do it for economic reasons, you could run your feed to a j-box in the basement and split it there. It seems less likely to be tampered with there.
