I literally throw the hops in the boil kettle, around 3 ounces for a 10 gallon brew.
Then create a whirlpool at the end of the boil.
As stated, in addition to the false bottom, I have a double stainless steel screen to catch the debris. But the hops make a wonderful filter , catching most (if not all) of the hot-break and cold-break material.
Based on my reading, the slight loss in efficiency with whole hops is not measurable for the average home brewer.
I am not saying whole cones are better, or pellets are not as good. These just work so well in our particular brewing system.
Like they say..."If it ain't broke, don't fix it".