I happened to notice that second positive work that you mentioned after I made my initial post. There just seems to be something about that second Lasix angle that makes it a very potent catalyst when combined with virtually any other positive change.

Not currently a Determinator user and this is not meant to be a redboard, but I had this horse as a play because I just love 2nd time Lasix horses combined with any type of potentially positive change: In this case the improved workout since last raced and blinkers-on. I have had more than just a few scores lately in maiden races that look very similar to this one.

In situations such as this I almost always will go with the higher odds horse, even though that would tend to fly in the face of general win probability. You need to separate yourself from the crowd in contests and that almost always means going for longer prices.