Digital BW, The Print

Currently I have the MIS UTR2 inks in my 220. I've got the Epson OEM
color cartridges that came with the 220, and I'd like to install them
to see how the 220 handles color prints.  I never tested this when I
got the printer, because I pretty much bought it with the intention of
dedicating it to B&W.  

Now I'm considering a 2400 or 1800, but before I do that I'd like to
see what kind of results I can get in color on the 220.  What I'm
wondering is whether I need to use cleaning carts from MIS before
putting in the OEM cartridges?  I've never swapped cartridges like
this before.

I was researching the K7 inks and I noticed they say it's not
necessary to flush in between swaps, and that it's possible to simply
take the K7s out and put the color ones in.  Is this unique to the K7s
or also true with MIS UTR2?

Thanks.