https://i.imgur.com/EL9xHtp.gif

My experience with 11.4 and Stale Shares.
Arrow marks the spot where I upgraded from 11.3 to 11.4
The image is 11.3 to left of arrow and 11.4 to the right.

I would say this is a great success in reducing stale shares from 11.3 to 11.4
Also everything else is stable, running cool and hash rates are equal to or greater than all other Claymore versions.

I would say this is a complete success.