Digital BW, The Print

Hello, I'm printing on R220 with UT-R2.

I like glossy, so after a few tests in the very beginning I'm printing 
on glossy for months, and now I'd like to test the double sided Ilford 
matte:

- What should I do after cart change ? Cleaning ? print purge pattern ? 
How much ? ... so that Eboni is Eboni and not a PK/Eboni mix
- Does anybody have the Ilford Heavyweight matte profiles for UT-R2 ?

Francois