I use a 4k/8k, a coticule, and a strop on my razor and can get a BBS shave after going through my honing procedure. However, I start getting some irritation after 7-10 days that I can't seem to strop out. I have to go a few laps on the coticule to get back to the best edge that I know how to create.

Based on what I read in some of the other posts, it seems like I should be getting more longevity out of the edge before having to go to a stone. I'm confident that my stropping technique is OK. Any ideas on what's going on and/or what I can do about it?

Thanks in advance.