Regarding bug #21665, (https://gna.org/bugs/?21665) - Running a CPMG analysis with two fields at two delay times.
Implemented as suggested in: http://www.mail-archive.com/relax-devel@.../msg04993.html
In all these cases, that information is available, so it should be used.
If one are analysing a combination of data types simultaneously (SQ CPMG, DQ CPMG, R1rho), one will not
have the same relaxation time for each. For different spin-lock or 180 degree pulse offsets and even different dispersion points,
the time may also be different.