Dilute Sodium Thiosulphate and POP?

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I mixed 100 grams Sodium thiosulphate into 2000ml water. Do I need to dilute that more for POP? The print bleached just as fast as they do when I use very dilute commercial fixer without hardener. SHould I be expecting to see the bleaching happen slower with plain old hypo?
 

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There's a difference between the "paling" of the image when fixing and the bleaching that happens in ammonium thiosulfate. 100 grams in 2 liters is a little less than I use - I think, I use about 1/3 cup in a trayfull of water :wink:
 
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