Washing US05 Yeast, again. Australian Pale ale

Did you know you can wash yeast, and us it again, a third time? for liquid yeat this is a good idea, but it might be considered Poor choice if you do it with dry yeast, a very poor choice to us it a third time.
But just how much of a poor choice is it?
If you would like to make it your self hears the recipie for 25l (6.6 gal) (Freedom units are in brackets, converted Poorly)
4.8kg (20 Big Macs) Pale Ale
.59kg (2 and 1/3 Big Macs) Munich
.3kg (1 and 1/4 Big Macs)Wheat Malt
.18kg (3/4 of a Big Mac) Carapils
.12kg (1/2 of a Big Mac) Carared
17g (almost 1 Chicken Nugget)Super Pride 30min
18g (little less than 1 Chicken Nugget)Galaxy 15min
33g (almost 2 Chicken Nuggets) Cascade 15min Wirlpool
26g (about 1 and a half Chicken Nuggets) Galaxy 15min Wirlpool
12g (about 2/3 of a Chicken Nuggets) Galaxy 3 Day dry hoop
6g (about 1/3 of a Chicken Nuggets) Cascade 3 Day dry hoop