For instance my latest graph with a 65Mb/s sync:
To me that's a near perfect connection. Client, router, modem, cabinet, ISP and server all working well. But I notice that the graphs on our new leased line at work typically have the single threaded line zig zagging either side of the multi-threaded line. Given that's fibre to our office park then fibre from a central switch to our server room and business-class Cisco kit it makes me wonder.
My fellow IDNetter is wondering if there's any significance in the fact his graph usually has the single threaded line 10Mb/s below the multi-threaded line.