Saw lots of connections to proxy-us-ga after I switched it to FleckProxy, and there haven't been any complaints, so I've now rolled FleckProxy out to all 9 of the proxies.
So owners of the original iPad (or any other Apple device stuck on iOS 5, or owners of the HP TouchPad) should now be able to connect via any of the proxies!
If you run into any problems with any of the proxies, just let me know via the contact page.