Away at the moment with the LC4. Experimenting with tyre pressures as recently changed the Grandtrek for Cooper Discoverer AT3 4S in the 70 rather than 65 profile. Struggling to find the sweet spot for the tyres fir a comfortable ride- at moment it’s a bit jumpy and harsh at the rear. 87K. Standard suspension and new oem shocks , drop links and roll bar bushes. As a rule of thumb should I be running the tyres with lower pressure because taller profile or doesn’t it make that much difference? The Cooper is a b heavy tyre so wondering if 29/30psi is too low? I’ve tried 34 but that seems v firm though truck tools well. I’d So suggestions on a postcard please? Thanks