That Depends...
....on how far down the slippery slope (of sin) goes. :wavey:
Sorry, I couldn't let that slide by! You pose an interesting question, and I never thought of backsliding in time increments. However, put the way you put it, it makes sense.
Since I've written my book, which contains the story of my 15 year slide from grace, I no longer refer to this sin as backsliding.
I now refer to it as "going Prodigal!"
Because in my 15 year walk from grace, I never once felt that I wasn't sinning. I was miserable, and highly aware of my wrong choices, and all that time. I never forgot my Father and His house and how comfortable and safe I'd be if only I'd return. However, pride, and tremendous guilt kept me away for 15 years, and I only considered going home once I was so deep in the mire of sin, that I knew, like the Prodigal Son, that at least my Father home would be much better than where I had slid to.