I've never Sniped, wouldn't even know where to get the program from. If an auction is finishing and I'm about, and really want the poster, I can put the bid on in the last few seconds, no problem; But these days I will put a bid on, and if I win, I win. If not there's many other posters to buy out there, in fact far too many to buy, I just don't have enough money.
Getting too obsessive with a certain poster, only makes you pay more for it. I like to get a bargain, so I pluck what is ripe. Not what will bankrupt me... Some on here need to relax and enjoy collecting, it's not a competitive sport....