I went from SrA to SSgt in minimum time, and because you cannot be promoted from SrA to SSgt directly, you are promoted "Sergeant for a Day." As a fluke, the date of the promotion ceremony fell on the one day I was Sergeant.
So after asking around on whether I should show up to the ceremony with my SrA or my Sgt stripes on my uniform, I decided to be technically correct and have Sgt stripes sewn onto my Combination 1 uniform for the ceremony, and separated less than a year later.
I never did have SSgt strips sewn onto my Combination 1 jacket.