Woohoo! That is awesome news. I am finally ordering for Jackson tomorrow since I am in the 45 day return mark for Gettysburg over July 4th. Though there was an instant the other day where it may have been helpful - I can't remember for the life of me what he frightened by but I started thinking the Thundershirt may have helped in that situation.
I'm hoping it works for him... he can be a real sensitive guy (Shhh! Don't tell him I told you!
) but anyways, yay I am excited! I'm going with the small because I think it'd really be cutting it close with the XS for him since he's at the end of the spectrum (he's about 18" girth).