how do i connect itunes to cydia? and how do i know if the blobs are saved?It's only possible to downgrade your MC model if you have your shsh blobs on file. The only way to know is to give it a go. Try and redirect your itunes to cydia's server in the hosts file and see if it lets you downgrade. If you get 3194 error then you don't have shsh blobs on file and will NOT be able to downgrade.
They are saved on Cydia's server (hopefully)are the blobs in the ipsw or the touch it self?