I have used a Mediastreet system on 2 printers. On my 7600, i have had only minor clogging over the 3 years it has been in use, and simple head cleaning cylcles have been adequate to deal with this infrequent occurence.
On my 2200, however, clogging with the yellow head has been and ongoing problem, mainly because of infrequent use. Mediastreet claims the problem is the position of this head and notes it was changed in the 2400.
Are you having clogging on the yellow cart, or others as well?? There is some info on their website relating to this specific cart. Replacing the cart and all the tubings seemed to hel a lot.
The good reliability of their system on the 7600, the cost savings, and the long term reliability of the 7600 itself have led me use this printer for alomst all of my printing now.
MDIJB