Two ways of accomplishing the same task-providing a working point on a wide blade with a big belly. When done correctly, it provides an incredibly useful knife with the best of both worlds. However, they both have their ups and their downs... We see Ethan executing both fantastic clip and drop points.
I think a Clip point gives an edge for a few things, mainly bolting, drilling and prying with the tip. I might get out tomorrow and take some photos of some of my favorite users in action to show a comparison. In big blades especially, with swells for forward chopping weight, a clip point is particularly efficient for giving the blade a working point where it otherwise would be too bulbous and obtuse-think Martindale Paratrooper versus a Condor Boomslang-without reducing a ton of forward weight. However, as previously stated, can cause issues for precise batoning.
Drop points maintain more material closer to the point, so generally it makes for a stronger point-think hollow versus convex grind-but generally isn't as precise as a clip point, and isn't as efficient at putting a working point on an obtuse belly or swell on a blade, or at executing precision tip tasks like drilling.
There's an art to both, milking the most out of a design without overdoing or under-doing a drop or a clip. I think the BK2 has a perfect spine contour for a drop point, and the BK9 a perfect clip point. With a Combat Crewman in hand, I believe it also has a very good balance between working point and belly, and gives me plenty of spine for choking up on or batoning. Bravo, Ethan... Excited for the tweener clip point! May also pick up a drop point and flatten the spine of the drop a wee bit...