My Toy Hauler is not very close to the ground which puts the rear ramp/door at quite a Steep Angle. AND because of the lay out of the TH I Have To Back the Spyder into it. When it's on solid ground and I put it into reverse it backs up fine, BUT backing up the rear ramp/door it pulses terribly! More than one Spyder Owner has said that the reason for the pulsing is to keep the Spyder from building up too much speed and making a sudden turn right or left and being thrown off the Spyder!! Is this right or just an opinion of a few? I'd appreciate some opinions if you care to make a response. THANKS