Doesn't life stink sometimes? My "Ramp of Death" (built by my husband off deck, NOT ADA compliant, nothing on side to prevent me going right over, STEEP (I catch air at the end with my rear tires). When the wood gets wet with rain, no way can I go down it! Learned the hard way. It had rained one early norning but by time I went out sun was shining brightly so I set off down it. OMG!!! The chair slid off it towards end (I wasn't even braking), rear tires on ramp, front tires on grass, all at an angle. My NJ acquired snow driving skills allowed me to manuver to safety. Needless to say, I always think about possible ramp wetness before going down, make sure I have my cell pnone. etc. My life is is video game.