Hey all, I just purchases a North Trail 24BHS. It has electric stabilizer jacks front and rear. I have it parked on a slightly sloping lot and no matter how many extra spacers I put on the lower side, it still will not level out. The two stabilizers just come down however far they need to to make contact and give a little push, The low side won't actually lift up. What am I doing wrong? TIA for any help.