Digital BW, The Print

I print primarlily b/w with Epson OEM inks via Epson's ABW driver on 
Epson Premium Glossy Paper via Qimage with a R2400.

My question is if I go to a MIS bulk system or refill Epson carts with 
MIS inks do I have to create new profiles or are MIS inks close enough 
to Epson K3 to use the Epson profiles?

Thanks 

Joe