In the BAD trace..
There is a lag between 5/6 and 7/8... nothing HUGE, but a fair bit.
This i would NORMALLY account to being part of the problem maybe... that the ROUTING outwardly, there is a problem at certain nodes.
In this case though, those are within GOOGLE.. so nothing within rogers.
The ODD thing is though, after your reboot.. it takes the SAME path (same addresses) and is fine.
A reboot, normally SHOULDNT effect anything path related.. you have no control over those nodes, etc from the rogers end.
Only other thing i can think of might be packet loss.
Durring a good time, do a PING to an address. At the end should show the % packet loss.
Try again durring a bad time.. see if there is a % there.
Only other thing i can sugest, is if you have a 3rd party router handy, is to try bridged mode.. SEE if its just gateway/router problem
But if its line, something else.. might not make a difference.