Just making sure I am clear on this...
Take a given layout... 75 X x.x X 50 on a ball. For a symmetric core, a shorter pin to pap.. say 2.5" has less flare and tends to roll earlier than something with a 5" pin.
Where I have not played around with it much (and reading some layout instructions and articles), this is not true for strong assymetrical core? How would reaction change (in general) between the 2.5" pin vs the 5" pin?
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+