I expect that the outer TCP might be better for high throughput, low RTT, no loss networks and more or less constant throughput on the vpn tunnel. Probably worse in all the other cases.
TCP is very tough to get right - with this said ,this would be great to help network-deployments where UDP is blocked and other restrictions such as national firewalls apply.
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[ 1.8 ms ] story [ 10.6 ms ] threadExciting iff this gets upstreamed.