OK from a different perspective. I have been alerted to the cost's of a CAT3B approach is the cost more so a result of a long stabilized approach or associated airport fee's. I understand the necessity of declaring A CAT3 approach/landing in minimums (airport should guarantee a protected RWY) but how many of you guys operate a 3B without advising tower in clear weather having enough distance to do so on a regular basis. Usually rollout is fine (I imagine)?
The guys I flew with only did one for aircraft or pilot recurrency as the norm, this being more than a decade ago.