I did something similar a couple years ago. I used the classic on my key ring for a month strait, making an effort not to use the regular size pocket knife I also had on me.
With the exeption of food use, like cutting a sub sandwich in half, the little classic really did 99% of what I had to cut. But then in recent years I've downsized my edc cutlery to knives like the Case yellow CV peanut, and the 84mm sak's like the small tinker and recruit. The past three months I've been edc'ing a Buck Hartsook with a 1 3/4 inch blade and it's done as well as the classic.
Think of all those old guys who got by in years past with those tiny 2 blade pen knives.
Never under estimate a classic. It's one of the best sak's there is.