Hey

I am in the middle of trying out some hoosier quick time pros in 26x9.5/15
First meeting I ran 10psi in them, i could hardly get any traction at all.
After inspecting the tires after the meeting I found only the centre was wearing and the outsides looked like they have hardly been in contact with the ground (1" each outer edge so 2" total of running contact to ground missing per tire). Should I be using lower tire pressures? will this cause the tire to slip on the rim if I do...

thanks