If you are only going to carry one knife, then a CE is the most logical choice for many people. Working with only one knife readily accessable in all weather and dress conditions makes sense while on duty or off duty. If you are going to carry two knives, then the larger one should be either SE or CE and the smaller one can be either CE or PE. Almost all SE knives have a little bit of plain edge near the tip. It isn't very often that you need more than that. If you are going to carry more than two knives, then you wouldn't be asking this question. All of my EDC have some teeth. I don't ever find myself "wanting" a pure PE blade.I used the Spyderco Endura with the serrated edge for a few years and liked it, .....
..... I thought that with the combo edge, I would have the best of both worlds. Could anyone comment please. Thanks