Better is better. Different isn't better.
Yes! It's back to 2009 again.
Think for yourself. Question authority.
No, it's not.
Because the same old tired arguments for the midlength being better, with the same old buzzwords like "dwell time" will keep getting thrown about, by people with no knowledge base beyond what they were told online.
If midlength is not quantifiably better than carbine length in some capacity outside of Internet theory, then what's the point?
The KAC interviews are great and all, but what is the quantified improvement in their system over the legacy?
I'm not anti progress. I fiddle fucked and burned more money and time chasing new hotness for over a decade before I finally learned that nothing markedly better has come along.
To go back to the original point of the thread, at least the longer handguard has ergonomic and heat shield. Not to mention retained accuracy when braced, over the legacy, and the tapered barrel profile has the potential to be marginally more accurate.
I'm of the opinion that the single greatest small arms improvements over the past 20 years are in the field of optics. We're still launching the same bullets, but the guidance systems are much improved. As far as the KAC rifles go, as much as I like my SR15E3, I think the enhancements are arguably in the lifecycle/logistics realm and of little impact to the individual user. I certainly do not notice the improved barrel and bolt life when launching rounds downrange or measuring groups.
"When the phone rang, Parker was in the garage, killing a man."
You do realize that your argument can be the same for those running anything besides a 20 inch barrel with a fixed stock right?
If you're going to use statements like red herring, you should actually understand what the fallacies of logical arguments are and start using things besides your opinions stated as if they are facts.