I've found that they yeast can have not so good effects on dry hops, so these days I rack to secondary for dry hopping whether I intend to reuse the yeast or not.
I have not noticed a difference, but have not tried side by side either. Next time I do 10 gallons of something dry hopped, I'll do it both ways and see what I think.
Vote Jonathan Fuller for AHA Governing Committee. For every yes vote, Jonathan will send you a can of Heady Topper.
*** This message has not been approved by Jonathan Fuller. All claims of free Heady Topper are in jest and not to be taken seriously. But seriously, he is a great brewer that is 100% committed to helping the AHA and all homebrewers prosper.