Great! I’ll have a look at the Lawrence when I get home. I will keep an open mind when comparing, but my own personal predjudice is to have the urtext with figures and to decide upon aesthetic decisions such as timbre, doubling etc. based upon the individual performace (as one would on the organ). I admit to wanting more flexibility, but indeed Lucille Lawrence’s philospohy behind her edition sounds very solid from your desrciption. I shall look forward to getting it!