Ask HN: Can you help me debug dropjar?

I'm trying to figure what's the top upload speed I can get with DropJar.com my file sharing service after getting complaints from users upload is slower than we transfer, the servers have a 1Gb connection but my internet at home is limited to 1Mb upload.

If you have a fat pipe and can upload in higher speeds can you please try and see if you can get a full upload speed on my site ? and comment here on your findings.