I was looking at that on paper the other day too.
I believe Magnus has tried the 5wt version and its pretty good, just have to watch FF&FT for a review.
I know the rod it's for,so wait and try the new addition to the Mallard range, it was designed on the rod's very similar cousin
They should be here soon.
Mind you i'd like to try the DP too, i reckon the my 5wt would love it.Nice pale olive colour too.
Sandy