Everyone seems to be making good points to me. For the most part, it does seem like there would be no adverse issues with either system.
By "violent" I was referring to the carbine being overgassed compared to the middy or rifle length. And that, in turn causing excess wear. However, it does not seem to be the case. If I wanted to feel some recoil, I'd bring out the Garand. 
Its actually going to have a rifle length hand guard regardless of the gas tube setup. This is for a few reasons:
1) The barrel does indeed get hot
2) Longest sight radius possible
3) Limited amount of barrel exposed in case of dropping or other damage
4) It looks cool to me 
It looks as though all things considered it doesnt matter on the system. As long as I know it is reliable and can suit my needs I will be happy with either one. It does seem I am leaning more towards the middy if I can not get too anxious and wait for the right barrel to come along.
Ask the Native Americans what happens when you dont control immagration.
Hi, we're America. We build Monster Trucks for fun. We devoloped a Top Fuel dragster, 0-330MPH in under 5 seconds... cus we were bored. Piss us off, and see what we build... -Christopher Titus on War and Terrorism
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