Just 4 shaves - hm, I don't know... These don't have super hard steel but still seems a bit abnormal. Maybe more aggressive linen (say 60 laps) and leather (60 again) first, then (if this is not enough) some chromium, and again leather.

No offense, but I am not aware if you have lots of experience honing, and a wedge is a different animal to begin with...

I guess you have to start at some point (if you want to hone yourself), and it's definitely better to just touch up to keep it sharp than wait until dull and then have to get it sharp. My reserves are based on the likelihood that you may make the edge worse, and then it will be harder to deal with it

Good luck
Ivo