Nice auctions!  Btw, I can recommend not putting the auctions ending times so close to each other, because many people tend to snipe nowadays, and when they end so close to each other it makes it hard to snipe them all, hence they may end for a cheaper ending price

 I always space mine out at least 30 seconds from each other to give the buyers sufficient time to snipe

I list them all via turbolister and have thought about this. It really hasn;t been too big of a problem in my past auctions, but we will see how it all pans out. If my fast internet connection didn't list them so quickly I totally would have spaced them out... maybe i will try to list ten at a time with five minute intervals for the next batch.
-Josh