Just tried the Shark Super Chrome using Lider shave cream and a mergress set at 2 and it's not bad. No cuts, irritation or burns It took a couple for passes more then I what I usually do with the IP Reds to get DFS but overall not bad at all.
Shark Super Chrome blades are outstanding.
I posted a thread on these marvellous blades time ago.
If you want, just give it a look!
Here is the link: http://badgerandblade.com/vb/showthread.php?t=148473