Again I observed a strange thing on the Mansion website: if you go to soccer 'Dutch Eredivisie' and chose the game Eindhoven vs Twente you will see that the back and lay odds for Twente are BOTH 6.05 (at least if you chose to show odds as decimal odds)...
I also have a screen shot, but at the moment anyway one still can see it on the page of Mansion.
I also have a screen shot, but at the moment anyway one still can see it on the page of Mansion.