Sienne and Gabby said:There are a couple of things going on.
First, the 47 gives Marvin a dose reduction. If you shoot early, it's like a dose increase. That's not what you want to do. I'd hold to your current shot schedule but shoot your current 0.5u dose. In the morning, you an reduce the dose to 0.25u.
With regard to shooting early, are you off schedule or do you want to change your shot time?