I am a safety razor convert who's trying to resurrect an old straight razor.

I just received an eBay leather strop. Instead of having a leather strop and a fabric/paste strop it has two leather strops. One is thicker than the other.

Do you have any idea which one I should strop the blade with first? Does one of them get paste put on it?

I have some time to kill before I need to know...the 3000/10000 grit stone I ordered is probably two weeks away until delivery.

Thanks!