Another great guide.
Anyway, a peculiar thing I noticed when I did some lab testing with Robin and Ness is that when a victim is at very low percent, Ness' back throw is extremely weak, yet grows stronger as the opponent takes damage. With Robin however, he/she/it has one of the farthest back-throws with the opponent at 0%, yet doesn't kill until the high 150's.
I am well aware my main Robin is an infamous camper and such but this made me consider how projectile-heavy characters rely on zoning so much. I use back-throw with Robin to create a lot of distance and also deal some damage but I wonder if there are any other characters that rely on throws for zoning.
I thought this might be interesting to add.