Which to use with a Race Face Chester Crank & BB?

Dadsky

Hi, Ive just fitted a Chester Crank with the BB that came with it, into a 72mm BB shell. I cannot understand the instructions re spacers, but fitted as I would a normal (Eg Race Face Turbine with Race Face XC BB) using one 2,5mm spacer on drive side, and removing all but one of the 3 three white spacers on the LH crank arm (Non-Drive). even when fully tightened I have lateral play of 3-4mm. Should I have left the white spacers on the crank arm?