my tip for stroping a smiling blade is to use a 2" strop and use a "|||" type action.
Heal leading with a 20 degree drop back to the toe, first stroke up with toe at far edge all the way followed by the same on the down stroke. Razor centre of the strop with same angle, go up, down. heal at the edge of the strop, up, down. This way you can concentrate on the relavant areas as you strop rather that considering the edge as a whole while you strop.

PuFF