Not sure if the foam is different from Bill's cases or if it makes a difference.
If you collect carbon steel blades, and store your blades in those cases....you better bet your rust spots and pits that there is a difference in foam.
Bill's Cases are the Hummer H1 of cases, and Maxpedition knife cases are the Suzuki Samurai of cases...the Max cases are made in Taiwan, I think, by people who really don't care if your Ed Fowler knives develop rust pits, Jose.
If you want Bill to add handles, just ask him to....as I said above...he hand cuts and sews each case.
As a personal aside....and this comes from a HUGE fan of Maxpedition products....saying Bill's Cases, and Maxpedition in the same sentence is insulting. Maxpedition knife cases are simply for people who can't afford or don't want to spend for the very best protection for their knives.....they are "good enough".
One last thing...The reason I am so adamant about Bill's Cases...is that before he started making them....there was really nothing as good...he revolutionized this sector of knives....used to use the el-cheapos, late '80's-early 90's, because that was all that was available, and my knives rusted, in some situations...AND before I started corking the tips, I had a BAD cut where the point went through the case...into my thumb.....even if you don't cork the tips, this is MUCH harder to do with a Bill's case.
Best Regards,
STeven Garsson