Well..... Tucker answered my question about the Toppers. I fed it to Sophie yesterday late afternoon, and she loved it. I went to answer the doorbell, and when I came back, Tucker was in Sophies room finishing the leftovers up. It was just minutes, and Tucker had his own fresh food in his bowl. Boy, those carbs must smell and taste good!
Anyway, this morning at 9AM I checked his BG just for the heck of it and it was 220! 3 hrs later it was down to 100. That was the only possible cause, at least food wise. Gave me a scare!