Sure you must strop razor before shaving... n° times as razor need.
after the shave i clean razor and dry it....after I lay the razor on a table (or on a shelf) for almost a day (to be sure that there isn't much water or moisture) so I take the razor and strop it for 10/15 times to remove any micro oxidation that will be formed.
All this may seem very long and tiring but it isn't.... especially if you shave 1 time(max 2) a week