Well recently the tool has started lagging for me now as well. I really have no idea what's causing it.
Vs my friend in Cali:
If we use the tool, we get delay 4 with ping at around 100 and then spikes of high 100s- high 200s. If we don't use the tool, there are no spikes with delay 5; ping of ~80-90. If my friend uses the tool and I don't, we get slight spikes up to low 100s with delay 5. If I use it and he doesn't, we get the big spikes and high ping with delay 4.
EDIT: I was hosting all three times (direct host). I just tried against someone else and there's no lag spikes at all. This just seems really weird because when I played with my friend around a month ago, we had no problems with the tool and it ran fine. It was only recently it started giving us lag spikes.
That shouldn't happen, the tool does not touch ping calculation at all. It only resets the delay thresholds. If you get higher ping when using the tool, the only reason I could think of, is your PC being unable to run MBAACC at a decent speed when locked to a single core. Try setting the setAffinity option in mbaacctool.ini file to 0.
Anyhow, I have just made mbaacctool more configurable. You can now enable/disable each bit of functionality on its own in mbaacctool.ini, so you can e.g. have key rebinding without the delay tweak, if you want that for some reason:
mbaacctool-generic-3