Seems like the 50000 is 6mm shorter but it appears to be thicker leather at least going by the AFrames Site description, perhaps, not.
The 60000 as said 6mm longer and perhaps the same thickness as 50000.
Delta is only $10. So no big deal.
Never had a long strop. Have been using the same ol stuff 3 inch models from SRD, etc. close to 15 inch of actual stropping area.
Which one I should get? Pros and cons of that extra 2 inches on 60000 model.