Funny you'd say this, for me one of the amazing things about the Chap FRN exactly is, how very secure it feels in hand despite its "slimness":
I compared it to the Native 5 lw in that aspect. If I just held the knives (both with index finger in the choil), I maybe felt like the Native is more secure.
But when actually USING them, for me the Chap felt more secure without a doubt. The Native had a tendency to roll and turn in the hand when for example whittling wood. Never the Chap, it's like glued in my hand...
Don't know why that is, might be just the different texruring of the handle, or that the Chaps handle geometry happens to be perfect for my L to XL hands.