Have tried the Gillette 2 blade cart lines, Sensor, Sensor, Atra, Trac 2.
What other currently manufactured 2 blade carts work well?
What 2 blade carts out of production but still readily available work well?
I have the Personna Trac 2 knock-offs. They work well for when I need a quick shave and they are super cheap on the bay. I've also tried the Wilkinson Sword Trac 2 and they work well, but my advice is to pull the lube strip off before using--it doesn't improve the shave (it may even make it worse) and it's hard to rinse off.