Yeah. That was pretty much my day yesterday. I had to rip back because not only was the count off on the second front, it was off by 6 stitches. You cannot hide the extra width 6 stitches gives you at all.
Still, after knitting hard all evening, I am right back to where I was when I discovered the grievous error.
On the upside, eveything from the boxes I went through the other day is now put away in a new home and my sewing supplies are where I can reach them. That counts for something.