Recently did a soil test for a client. pH was 5.4 In north GA, we have clay soils. However the recommendation was to add 25 lbs of lime per thousand. All of my other reference material says for clay soils it should be 75 lbs per thousand to raise pH by a whole point. This lawn was topdressed last year with mostly sand. Is that throwing off the soil test recommendation? Not sure which way to go here, because underneath the sand its all clay.