Without pictures it makes it hard to fully understand the issues.
Could the Spyder have a sensor that kills the engine if the bike tilts beyond a set degree?? (Just a wild guess).
Are you telling us that the Spider "High Centers" when you try to load it? I had a friend that had a show bike that was real low. We had to get him half way up the ramp and then three of us lift the gate a few inches so that he wouldn't drag bottom as he entered the trailer.
I like the Spyders. Good for old guys with bad knees like me but my riding days are over.
Don't mind the Harley guys here.
Just remember Harley guys....
"You can buy better but you can't pay more!" :p (Just kidding of course)
Bill