Difficulty Tilting Martin Logans Foward

My experiments indicate that I get the best sound at my listening position with my 72" Martin Logan Sequel II speakers tilted foward. However, when tilted more than just a little, they are ready to topple over! Anyone out there figure out hot to tilt these foward without knocking them over? Anyone know of any stands that would allow for this? (I emailed sound-anchor but they did not respond).