[ccp4bb]: big crystals that diffrct poorly

[Jay Pandit <pandit@pfizer.com>]

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Hello all,
 Everyone has probably experienced this - big (0.5mmx0.5mmx0.3mm),
beautiful crystals (sharp edges, clean faces), that diffract strongly to
6A, and no further. What's the reason for this ? Are there any stories
out there of tricks that have improved the resolution of such crystals ? 
This is not a ccp4-related topic, but then this bb is the best general
crystallography discussion group that there is, so I have to post this
question here ... 
 Jay
-- 
 Jay Pandit
 MS 4039
 Pfizer Global Research and Development         Phone:  (1) 860 441 3738
 Eastern Point Road                             Fax  :  (1) 860 686 2095
 Groton CT 06340 , USA                          email: pandit@pfizer.com