Way late to this party:
I'll generally always have 1 of the following on me: Kershaw Leek composite, Kershaw Rake (composite), or a modified Kershaw Junk Yard Dog composite.
The Leek and the Rake are assisted opening - the JYD is a flipper.
The JYD (bottom knife) has been modified with a different pocket clip for right-handed tip-up carry. Wasn't concerned with the Kershaw warranty being voided with the work - it's a factory blemished knife w/o a warranty in the first place.
JYD II: 1725CB