Hi Chris
From playing on my data and trawling threads don't think anything is set in stone. Russ Croman seems to recommend BXT best on linear data (particularly if being used for deconvolution versus working on stars alone). There's a big argument on PI forums about if BXT for star shape correction before SPCC is worthwhile. Likewise some say ABE/DBE before SPCC, others prefer doing on stretched data.
The one universal seems to be more time spent in the field getting lots of well tracked and calibrated data makes everything later in processing easier.
Doesn't cost anything to save your masters and working images as you progress in a folder, and later try doing things differntly to see if any better or worse.
Sorry if that doesn't answer the question
Would be interested in any insights others have or if you've adjusted your (PI) workflow over last year or so? With apologies to anyone preferring Startools, Photoshop etc......