Yeah, I ended up pulling the trigger on an Everest for the 40mm Yachtmaster and it didn't fit at all. I mean it fit between the lugs but it didn't integrate into the case. I should have tried it with a RubberB model because those seem to have more material over the caseback. The Everest model hardly has any which leads me to believe it must integrate into the Submariner case based on some lip on the case near the bezel to prevent it from completely turning over.

 

I'm curious...do you think the 16570 RubberB strap fit better on the 2500 PO than the RubberB on the Tintin seen in this thread? Or was the gap about the same?