Back on topic. mob, if you are only getting 20Mbps out of 25Mbps on upload speed, contact Surewest, they will fix it.
You're in luck that 80% of advertised speed is the magic number you need to hit before Surewest will attempt to resolve speed issues. If this isn't a router or computer issue, they will simply bump the upload speed limit on your fiber port from 25Mb/s to 30Mb/s.