In general when running a test if they give you the option of those two blinds to run in either order, pick the one with the most water. Get your dog thinking water. Not only that but so many dogs are used to repeating blinds they are more likely to take the same initial or a similar line to the second blind as they took on the first. Lots easier to handle out of water than into it. In training, run it in the other order - less watery first.
Judges did not indicate an order. I assumed that you could do either blind. I did not ask as I already decided that since the short blind was hot (and the wind was left to right) I was going to do it first. Funny how things are. Was worried more about Rose (not a very water enthusiast) on that blind than Belle (who seeks water). Plus they just had the two water marks.