This question took me quite some time to get clear in my mind. For most of my life, my choice of pocket knives has been the multiblade jack. I li ved with a boy scout knife, SAK's, two blade barlows, and other jacks. For 30 some years the humble Opinel has come and went, always lurking in the sock drawer, sneaking into the pocket now and then to stow away for a day. Slowly my resolve has been compromised.
The late in life growing facination with friction folders has led me to the single blade knife. First, the Opinel, then Fausto's little pattese that felt soooooo good in hand. Then Dan, (Silenthunterstudios) corrupted me further with the GEC number 15. Now I feel that I am dangerously close to becoming a single blade fan. The slightly slimmer profile that carries easy, hardly noticed if at all. But still capable of doing the job. Like one other forumite has stated so well, I am coming to belive if one blade doesn't do it, then having another on hand won't help. PLus, since I always carry multible knives, like my clasic always on my keys, I have a knife for the 'dirty work".
Of recent times in the past few months, the only multi blade knife I have carried has been the SAK that I now am using here in Oregon on vacation. It's done a good job of opening beers, slicing limes, but any single blade knife could have done what I have needed. I don't need a dedicated bottle opener as long as I have a BIC lighter, house key, P-38 or Sear's 4-way screw driver on me. So that leaves my Pattese or number 15 for a cutting tool. More than enough for what I need. Actually, rafting on Wednesday, the jet boat up Hellgate canyon today, and some forth of july celebration yesterday, I haven't needed much knife on vacation. Tomorrow we go to the redwoods and some hiking, so things may change.
I guess I am being pulled into the single blade camp.
Carl.