[pest]

Now that is the opposite of what I have always heard. I thought that you lag most likely came from poor upload capabilities. I can have downloads going on my second pc that dont hurt my ping a bit, but if their are uploads going it trashes my ping. Lag is slow (two-way) communication with the server. Your upload has much less tolerance for interfenece due to its already small capacity. If your pc cant tell the server what you are doing, it cant tell you what everyone else is doing in relation - hence lag. Some one comes around a corner, you pull the trigger and nothing, you die. The server was able to tell you someone was there, you werent able to communicate that you had pulled the trigger before the guy that didnt have lag due to upload latency.

Now, I might be wrong, but that has always been my understanding.