I'll fix the UI. It doesn't default to anything, rather it shows you as a subtle reminder in the text box what your previous weight was (as a reminder), but you still have to type that number in there. I'll move that reminder out of the text box itself so that it doesn't seem like it's already filled out.

Thanks, Erv. For clarity, I did try to type it in again, but it wouldn't accept my input. It seemed to lock out the field. I'll try again. Thanks.