Tom and Troy,
The following is not exactly a straight taper but almost. It's done very
well for me:
0" .062 45" .192
5" .084 50" .208
10" .096 55" .220 Good Luck,
15" .108 60" .242 Hank.
20" .122 65" .268
25" .136 70" .282
30" ,150 75" .304
35" .164 80" .306
40" .180 85" .308
45" .192 90" .310