Not really..... I put the hops and beer in, seal it up, purge and it just sits there for a couple days. When it is time to jump it to serving keg, I pick it up and put it on my chest freezer so I have gravity plus CO2 pressure working in my favor for the transfer. So, I guess when I move it I disturb it a little, and might shake some out of suspension on top.
To be honest, the bigger problem I have had is not hops floating on top.... it is them falling out and packing down on the bottom and making the transfer difficult. I ended up cutting a little off my dip tube to keep it out of the solid hop pack on the bottom which can potential plug up or slow down transfer. I would actually love it if the hops would float on top - would make the transfer so much easier.
You linked the keg transfer technique in the recipe post, do you use the same dip tube filter cover? Do you just dry hop without a hop bag and hope it doesn't clog? The writer of that link you posted mentioned cutting an inch off the dip tube.