xray t3 2012 set up

[moggy12]

hi to all my xray t3 2012 is all set up shocks are equal length all adjusted for 5mm ride height droop all the same but when i check tweak by lifting rear of car under chassis to see if both tyres leave the ground at the same time they do not , side that lifts first i tighten front opposite shock and loosen other front shock i do this for the front aswell by lifting under front of chassis and adjusting rear shocks i do then get all front and rear tyres leaving the ground at the same time is this normal thing you have to do ? i have checked for chassis tweak by putting blocks under chassis they is no movement of chassis thanks for any replys