Best 4.X firmware?

hi all. have ipod touch 4th gen running 5.0.1 jailbroken redsn0w. since many cydia apps incompatible ios5 thought go ahead , restore 4.x firmware. so, question is, stable 4.x firmware ipod touch 4th gen? (remember, jailbroken) thinking of going 4.2.1 hear of opinions, lot!

 

what firmwares have shsh blobs for?

 

Forums iPhone, iPad, and iPod Touch iPod touch

• iPhone
• Mac OS & System Software
• iPad
• Apple Watch
• Notebooks
• iTunes
• Apple ID
• iCloud
• Desktop Computers
• Apple Music
• Professional Applications
• iPod
• iWork
• Apple TV
• iLife
• Wireless