Alright, this is something I've been wondering about since I transformed my brothers Armada Scavenger and he refuses to stand up (he can, don't know what I'm doing wrong). How often do TF's just fall over from just being unstable in some way? I remember seeing a Peaugh video where he actually had some heal add on to make a TF stable, and, even if it isn't balance, Prime Ultra Magnus can't hold his hammer because his arms are too lose?
Only time I've ever had a figure straight up fall over on my shelf was the RotF redeco set of Energon Aerialbots. I make sure figures are posed in a way where they're balanced and don't easily tip over before putting them on the shelf.
I put my figs on my dresser and because of that, small vibrations get sent to where the figs are standing. I have them fall over sometimes if I'm trying to do something that is jsut a tad too precarious, but otherwise I don't have much of an issue.