DermottAgreed with everything said about the stainless composite version, that was my edc for a long time.
Kept meaning to etch a splash pattern into the handle to improve the grip, but never did get around to it
DermottI have a few standard Leeks, a D2 Composite and the carbon fiber. Of the three, the CPM-154 on the carbon fiber is by far my favorite. It's as easy to sharpen as the Sandvik on the standard Leek (and takes a HELL of an edge) and keeps that edge longer than D2 It's really a phenomenal steel. Keep in mind that this is CPM-154 (powdered steel) and not 154CM.
The carbon fiber on the Leek has kind of a matte feel. It's smooth, but is "grippier" than the steel or aluminum handled Leeks.
The big issue here is the price. These knives go on sale VERY often. I was able to get a D2 Composite (not blackwash) for $52.50, a carbon fiber for $56, and a gray blackwash (aluminum handle) for $28 within the last couple months.
I'd definitely spring for the nicer steel on these. The 14C28N is alright, but the edge retention isn't great; they require frequent touchups with a stone.
One other thought: if you haven't had a Leek, and you get one... consider removing the locking mechanism at the tip. These don't just jump open in your pocket, and not being able to open them one-handed when you need to is a real drag.
Unfortunately, the blackwash composite, here, is overpriced. Composite Blackwash Leek is $65 (vs $80, here), Amazon prime: https://smile.amazon.com/Kershaw-Composite-BlackWash-1660CBBW-Black-Oxide/dp/B00KZJLDHK/ref=sr_1_1?ie=UTF8&qid=1530299334&sr=8-1&keywords=composite+leek&dpID=41DN47cUahL&preST=_SY300_QL70_&dpSrc=srch
Carbon Fiber and CPM-154 is a little more competently priced. Amazon's only $10 cheaper: https://smile.amazon.com/Kershaw-1660CF-Stonewashed-Reversible-Pocketclip/dp/B06XFGY89C/ref=sr_1_1?ie=UTF8&qid=1530299339&sr=8-1&keywords=cpm-154+leek
Can anybody comment on the grippiness of Kershaw's carbon fiber grips, or the retention on the CPM-154? Haven't had a chance to play with either, yet.