more in line the better unless there have some big improvements in equipment. remember how even on the atp, the T serves always were the fastest. That was mainly due to angle error. Now with hawk-eye, the tracking systems can give more accurate numbers on the wider serves too, but they used to be off around 5% or so. Now you can see some 130 out wide, which almost never happened before. It's just hard to do well. That's why Mike C's video method is really quite good as it removes many of the problems.