I've read over some of the threads on ph testing for brewing, and they seem to work around all grain brewing. Is it worth it to do ph testing and water adjusting for extract brewing? I do extract with steeping grains.
The pH is really only important when doing conversions (all-grain). With extract it has all been done for you. So there's no real benifit to checking pH
Most of the concern with pH in brewing centers on establishing proper mash pH and this is the critical step because if you get that right the other "waypoints" tend to fall into place. As an extract brewer you could potentially improve your beers by adjusting kettle pH but that would definitely be considered "advanced" and you'd have to have a pH meter to do it.