I bought the Core Designs Model E stands for my Usher Be-718s. The stands themselves are 26" so a few audiopoints between the speaker and stand AND/OR between the stand and ground can give some adjustability. Frankly, I think the Core Designs might be the best ones in the market for the Usher speakers aesthetically and functionally.
FYI, the original Usher stands have been discontinued. Also, the Ushers look VERY similar to the Sonus Faber lineup. Should probably see what the SF crowd are using, as they could be good options for the Be-718.
Remember, different stand materials will make the Speakers sound different. Use the materials to "tune" the sound to your liking....find the stands that seem to be the best fit for you and take it from there. I like to play with different wood materials hence I went with Black Walnut stands for my fix.