Birdy,
I seem to remember a band of comanche staying just west of San Felipe for a week or so fraternizing with the locals. 1830-ish???? I think it was mentioned in Deshields book.
If its the account I'm recalling, observers said they were short, skinny and hungry. In a bad way. Not too impressive.
During the big drought in the 1850's that left many Comanches hungry and drove numbers onto the Brazos Reserve (??) for the first time, I do note that these hungry ones just didn't relocate to join their tribesmen further West. I suppose some did, but perhaps not all Comanches knew or felt especially charitable to each other.