The way the bidding system is set up it favors those that bid early and use the max bid option. I'm not sure how it handles increasing the max bid, but it seems to be tied to a percentage of units bid upon at the next lowest price and time since the last bid. So you end up with staggered levels of bids that favor the people who bid first and bids rapidly increase towards the end.
This makes it so that as the time on the auction approaches zero the size of these levels decreases. You can really notice this effect on the larger auctions. For instance in the link below you see a large base getting them for $12.50, a smaller group getting them for $13, and $13.50. You also see the snipers paying $14, $14.50, and $15 in smaller groups (except for the first bidder who probably mis-bid).
https://www.cigarbid.com...ed-dot-robusto/4824896/ So by trying to snipe in the last seconds of an auction you will be paying a higher price, and have to deal with rapid price level increases due to other snipers.