palm swell size manners t vs t3

I have one of each and if there is any difference I can't tell by the way they feel. Looking at them side by side the MCS T maybe a little smaller/shorter.
 
Thanks Joe. I run a t3 on my .243, and have another one for a build for my now 2.5 yo son. I am just a little concerned that the generous palm swell may a little much for youthful hands. Not a big deal as I have a few years to work out the details.