I don't have to, but my conscience won't let me send out the very best knife I can. I estimate these Kershaws would require about half an hour each to get into an acceptable state.
The Schrade, OTOH, needed about 30 seconds of stropping. That was all I've had to do for it, so far. It opens more easily, and with either hand. The blade is a bit thinner, and the plastic handles don't feel as "solid", although they are plenty comfortable. But these are knives, and not crowbars. The Schrade is starting to look better.