Some like it strop, some like it cold. Stupid comment aside it seems shavers will strop as they please. General consensus is to strop just before shaving. Some will strop between passes and some immediately after shaving. I have stropped the night before and found I didn't like the overnight edge. The only time I don't strop before a shave is with a newly honed edge since it was stropped as the final stage before shaving. I suggest you try stropping at night, then try before the shave for a while and see which suits you best.

Also, great debate ongoing is how much on linen, or felt, and how much on leather. I'm currently at 15 on chalk loaded linen, 30 on hard felt and 120 on English Bridle leather. And that could all change in a heartbeat if I feel I've read about a "better" way. Experiment and judge quality of edge and shave to see what suits your face the best.

One caution, use crox very seldom, all that seems to do is waste steel.