The strop is no more than a carrier for your choice of honing compounds. The wax matrix in chrome green honing compound softened my leather strop (glued to wood) so much that the softened leather compressed and the rebound was rounding off my fine carving gouges.
Now, I buy a pack of 5x7 filing cards, use them taped to a stone counter-top cut-off. Scribble all over
with the CrOx/AlOx honing compound and hone away. Black and I toss it for a fresh one.
This produces an absolutely predictable and consistent result, I'll never use leather again.