High versus low white pied feeding habits

[alan1]

i've heard that a pied from a visual x visual pairing is generally a slower feeder/grower that one from a pied x het pairing
how true that is, i don't know

here's my experience: (parentage in brackets)

med white male 1 - superb feeder (het x het)
med white male 2 - superb (not known)

med white female 1 - fairly good (pied x pied)
med white female 2 - good (not known)
low white female 3 - slow (not known)
med white female 4 - very slow (pied x pied)
low white female 5 - very slow (not known)
low white female 6 - superb (het x het)