Digital BW, The Print

I have a question about swapping carts in a 1280. 

I would like to try using the MIS Ultratone inks in my 1280 but 
would like to continue to use it for color as well. 

Is it ok to pull the color cartridge out and put in a ultratone cart 
and then swap back after you are done printing B&W?

My concerns are getting air in the printhead and possibly messing up 
the on cart chip such that the cart becomes unuseable.

Is anyone out there doing this?

Thanks

Scott