You can add trash until the compartment is full and the compactor will not compact the trash any further. The compact cycle time will be shortened as the compartment fills up. During full cycle the ram travels 2/3 of the way down into the trash bucket.
With Humalog's short action time of 3  hours, covering postmeal highs with more insulin can be considered as soon as two hours if a meal dose have been underestimated. Of course, not as much sliding scale insulin would be needed here as before a meal, because some of the meal dose is yet to work.
That's simple... You might have to take the humalog 15 to 20 minutes before eating. Humalog had a curve to how it works the curve need to match the food ( in your case rice which is a very fast BG riser. yes even brown rice) I think you get shaky when your BG is high.