Excess trub, loss of beer, and clogged racking canes from whole leaf dry hopping is a pain.
As a hop grower with 150 hills, I have been looking for a solution. What I found worked surprisingly well was grinding the whole hops in a old Corona mill and adding them to a carboy. The aroma and taste from the dry hopping is fantastic. The hop particles settled mostly in the trub, not on top, with daily swirling.
Damn, now I have to experiment with kettle hops.
Gary