Hi 247sniper,
Congratulations! Enjoy your WEPS!
As to your question on stropping… It’s a bit weird. It shouldn’t happen at 18 degrees.
Getting a burr from stropping is pretty hard, but if you use a lot of pressure you might still be rounding your edge.
I’d first say lower your angle to 17 degrees. Then you’re really sure rounding cannot happen. As Mike said, use low pressure. If it then still happens… let us know. If it doesn’t, raise your angle to 18 degrees again and try again.
Can you tell us a bit more about your stropping process? Are you using leather strops? What stropping compound?
It could also be something that has nothing to do with stropping. It might be that there is something not entirely good with your sharpening, for example that you end with a burr. This may initially seem very sharp, but by stropping you remove the burr.
To prevent ending your sharpening with a burr, make sure you use alternating sweeping stones when finishing with each of your stones. Also finish with low pressure. (High pressure is never good, perhaps with the exception when you want to set the bevel.)