My English is bad, but I know all you say.
I use SCP of Karnath, I think cut off validated by Baccini-Paci (score >0 in each section) is good only in the early stages post stroke, because I think resistance to passive correction is the first symptom to disappear. Lateropulsion Scale by D'aquila e c. is better, but it is too long to do...
I hope to know Shepherd and Carr experiences, I have Guidelines ....2002: are there their opinions?