Downgrade from ios 4.3.5

Hi I got an ipod touch and it came pre-installed with ios 4.3.5 and I was about to follow this tutorial
http://www.redmondpie.com/downgrade-4.3.5-ios-to-4.3.3-4.3.4-4.3.2-4.3.1-4.3-iphone-4-3gs-ipad-2-ipad-ipod-touch-4g-3g-how-to-tutorial/
but I keep reading that it won’t work without an SHSH (that correct?) or something and I don’t have one of those.. at least I think I don’t. Anyway, is it possible to downgrade it from a pre-installed 4.3.5 to 4.3.3? Thanks!
Answer #1
No SHSH Blobs = No Downgrade/Upgrade (except to latest FW available)
Answer #2
All right cool. Thanks.