With regard to poll questions,I would consider the tail dia more important,which has not been offered as one of the more important characteristics modifying accuracy results.
I, as well as many well known shooters used RWS Superfields about 4years ago,until they altered the die.
When the old pellets were compared to the new died batch the results were that the new head and tail diametres had been altered, head dia increased and tail dia decreased.
The result being at 55yds the groupings were not tight as before and not consistant.Probably why the more knowlegeable shooters dumped them and moved to something else.
Fighter against the 'Dark Arts'
Dark keeps moving in on the day.
Steadily going downhill faster!