I'm a little late in posting this but Tuesday was the official last day with a helmet for DS2. The clinic we went to actually recommended a 2nd helmet (he's grown out of this one) but we've decided that we're happy with the HUGE changes his noggin has already made and won't be continuing with another.
The flat spot on the left side of his head has made really significant growth and the asymmetry that was in his ear positions & facial features previously is almost entirely gone. And now for the best part... pictures!!!
BEFORE:

^^^The top view (bottom/left) is where you really see the most changes!
AFTER:

The little white lines going across the top of his head is actually the seam of the pantyhose they put on before he robbed a bank so you can see the shape of his head without the peach fuzz.

(I will miss this silly little helmet head though)
Re: The "Hat" is off!
Baby C - 08.23.13
BFP 3/29/2014 2u2 Let's do this!
FTR I always thought his helmet was so cute. He looked like a tiny super hero. It made me think of Magneto from Xmen...but he was the much younger/cuter good guy version.
DD2 8.22.13
MMC 1.4.17 at 16w
Expecting #3, EDD 1.29.18
Aww, still cute as heck without the hat!