Is it possible to downgrade 3GS from 5.01 to 4.34 without TinyUmbrella?

[GP20]

I want to downgrade my 3GS from IOS 5.01 to 4.34. I didn't save my SHSH via TinaUmbrella. But my 3GS had IOS 4.34 and it was jail-broken before. I thought Saurik saves the SHSH's on his server?

[xtacy]

Check fetch shsh from cydia in TU and click save shsh. If it's there it will show up. If no then u can't downgrade .