Tom - You might think secert reserves are fun but a lot more people don't agree and the ones I have talked to don't bid on reserve auctions. As a seller I found out reserved items never sold as well as items without a reserve.
The strikes in mention are good high end strikes and with the price guides that are out there a seller might do better listing the strike with the lowest amount they will take and let it go to the highest bidder. Of coarse if the auction doesn't sell and the highest bid is what the seller would really take he or she can always offer it to the high bidder after the auction and not pay the seller fees.
Walt