Angle of Sonus Faber Olympica I stands?

Found a great deal on a pair of Sonus Faber Olympica Is and decided to pick them up. They were sold without the stands and several reviews mention the matching Sonus Faber stands tilting the speakers backwards slightly for better time-alignment of the drivers. Any chance someone knows what the angle on those stands ends up being? Figure on playing around a bit but thought it might help to know the ballpark the manufacturer uses. Can’t wait to get them fired up this weekend :). 
 

Thanks in advance