My soul music education was supplemented very much from this magazine in the 70s. I bought import (and unheard of UK) singles and albums on recommendation by it's trusted reviewers. I've just unearthed a pile from my loft and supplemented the collection from ebay (the originals cost 15-20p/ebay £7.50!).
Much soul music was ignored by the music press at the time so a specialist mag (and this was the only one until Black Music appeared later in the 70s) was a real treat. Published fortnightly it had a heavy predominance of coverage of the northern soul club scene.
I've scanned a few things from the copies I have and will post them where relevant. Happy memories.
This front cover from July 1972 features the Stylistics (for some reason lying in the road).
I also found it useful as a number of the artists featured also had their releases pressed at the Walthamstow factory see Made In Walthamstow - so that adds to the research.