I like 4.3.3 much better... think it is much more stable... has better battery life (significantly)... and feel as if it is just a smoother / better OS than iOS5.
Cydia says that it has my 4.3.3 SHSH saved as per this screenshot:
Using TinyCFW and tiny umbrella. However I got error messages and the phone would not restore.
I tried a few times. In the 'advanced' section of tiny umbrella I then attemped to set 'request shsh from cydia' and 'set hosts to cydia on exit' but still did not work.
Can I downgrade? Why does Cydia have a saved 4.3.3 shsh but tinyumbrella does not?
1. Change host file: 74.208.10.249 gs.apple.com
2. Put ur phone in DFU mode
3. Restore 4.3.3 ==>and you will have an error.
4. Re-Install itunes 10.1.2.17 ( must use old iTunes NOT 10.5 beta 7)
5. DFU mode again in step 2
6. Run Fixrecovery 4.3
7. Run iTunes