My buddy and I found these two within 100 yards and 10 minutes of each other on a ranch in Cotulla, TX almost 5 years ago. Been surface hunting there for 12 years and never found any of these point types before or since. I found the purple one, my buddy found the whitish one. I think the purple one is a carizzo, I am less sure of my buddy's. Kinney perhaps?
Also included is an up-close of the purple one...absoultely flawless detailed flaking and a great "twist" to the body of it too!
The top pic. is your classic carrizo. It's generally believed in this area that the carrizo is a kinney variant. The second (Kinney) looks almost like a carrizo. I've got two carrizo's I've found here in Fro co. They're more prominent south and southwest of here.
You're correct in your accessment's of the 2 types. I've noticed that the Carrizo's are alternately beveled on each side also. I think it's a characteristic of the time frame when they were made.
If someone has an extra Carrizo that they'd like to trade for some 3"+ Texas points, I'm ready.