If a 24 hour or more delay in onset of PEM is not usual for the onset of PEM in a sufferer, then the diagnosis doesn't meet with the NICE guidelines. This has been confirmed in writing by NICE.
If a diagnosis can't even meet the NICE criteria, then it's certainly not ME/CFS.
If Crawley gets her way, she'll presumably diagnose ME after three months of fatigue and one other symptom as she repeatedly states is ME/CFS is diagnosed.
If the severe are determined by Crawley, then the most severely affected will not be included in the trial. Only those mild or moderately affected. Crawley has stated on numerous occassions that those that attend her clinic only manage a day or two a week of school and so only the most severely affected get treatment. This is clearly rubbish. If a child can attend school, they're not severe.
Furthermore, Crawley decided that the six most severe in clinic had PRS because she considered their function to be too low for ME/CFS (check out her G160(P), G160(P) Case series of Pervasive Refusal Syndrome presenting with Chronic Fatigue Syndrome: avoiding the pitfall of a wrong diagnosis
http://adc.bmj.com/content/99/Suppl_1/A70.2
She clearly has absolutely no intention of accepting the severity levels present in severe ME.
To further support this, a talk last year, identified that Crawley or her clinic were insisting that tube feeding or paralysis are not part of the ME spectrum.
MEGA's statement on managing the severe made it clear they thought the severe could attend clinic. Clearly impossible.
It is my opinion that whilst Crawley and AfME have anything to do with the study, it's a non-starter.
Why the scientists don't just ditch them and put in their own application, I'll never understand.