hi
i used this formula on a system that i created , giving points to a 1,2,3 and 4 in the silk form,for some reason or other the / had to have it's own IF because it would not work in a OR command.
this was set for the 3rd fav so remove the _3 or replace the 3 with your fav position.
(IF(r_3_silk_form_1=/,0,IF(OR(r_3_silk_form_1="-",r_3_silk_form_1="F",r_3_silk_form_1="P",r_3_silk_form_1="U",r_3_silk_form_1="B"),0,IF(r_3_silk_form_1=1,5,IF(r_3_silk_form_1=2,4,IF(r_3_silk_form_1=3,2,IF(r_3_silk_form_1=4,1,0)))))))
mcbee