said by AnonMan :
ShaperProbe is not accurate by any means.
People say use it and what not but like any other service it all depends on the hosting server and which server you connect to.
ShaperProbe has a list of IPs and sometimes mine connects to a slow one and sometimes a fast one.
It takes a few runs across different IPs to know an decent avg. He probably just ran it once.
Obviously it can vary. But the variance, in my experience, has been very minimal.--
"I drank what?" -Socrates