I have the same issues with loading my Sportsman. I try to park near a ditch or berm to lessen the angle, or else my snowplow mount scrapes on the ramp

Also, be sure to lean way out over the handlebars. Seems to help keep the front down

Or you could just buy a Chevy I suppose

 

This is how I do it

http://youtube.com/watch?v=-2Bn24PmgAM

 

I agree with all of the above, but I didn't notice anyone mentioning one thing that I do: I stand up, with one knee on the seat and the foot hooked on the rear rack. That way if I lose it, I can jump away. Also, standing like that allows me to put my upper body over the front wheels, to keep from flipping. I also use the same posture coming down, backwards. Finally, I have a hand on the brake at all times. if you are nervous aboiut backing out, just push it onto the ramps, and let it go. And yes, always find a raised peice of ground, or berm or something to even out things.
Later.