Hi I have a 07 vortex . I just put a 4x4 or a 6x6 under the front jack. Left to desired height. Make sure you chock tires and get the ramp off the ground before starting to left.
I had the same problem. got a 06 royal star tour deluxe. not a nice feeling doing a balance act trying to get bike of the stuck point hope you have a safe trip cheers dave