To be honest Pinco's are not too good. They may work in your PS2 for some time but because they are of very poor quality they will make your laser work very hard, thus over time stressing your laser unnecessarily, in turn possible wearing it out in do time.
Ritek G03's or G04's are your best bet.
www.meritline.com is a great place to purchase them with free shipping a lot of the time.