i've been growing in soil for a few years now and don't even check the ph of the soil as i think people get all worked up over the ph of their soil and it's not really that big of an issue imo..
i know fdd2black , a member on here, who used to grow trees outdoors, said he never even owned a ph meter, and dude used to grow 3 lb trees on the regular... good enough reason for me not to worry about my soils ph..