I've heard this before, the traffic adjustment "feature" of AS. But, if the alleged adjustments were being made properly, there wouldn't be any evidence of it in the completed auctions, as the "target" would still be to place the bid at 8 seconds before eBay time. What is happening here is AS is placing the bids well in advance--and the bids are hitting eBay well in advance--of the end of the auction.
I just had one that I won (using AS), but my chosen 7 second lead time was mysteriously increased to 1:19, which allowed another bidder to get three bids in before he ran out of time! It just made me wonder how many other times this has happened without me noticing... and which auctions I may have lost because of it.
I dunno, but the explanation given is just a bit fishy.
As far as 1-second snipes is concerned, before I discovered AS, I used to do this all the time, manually. I'd refresh the auction page a couple of times to check the delay, and then place my bid (using another window) a few seconds prior to the end of the auction. I think my goal was five seconds before, but sometimes this would end up being three or fewer seconds, depending on Internet traffic.
Ciao,
nobayuk
London, UK