Cross Rod Taper - TSmithwick

This rod amazed all who handled it at the Catskills Gathering. On paper, and
to the eye of several experienced rodbuilders , it looks like a 5 weight
taper, but it competently cast a 7 weight for considerable distance. While I
haven't charted the rod yet, It looks like this is explained by a strong
middle. Look at the jump from 42" to 39". I'm a little confused on how to
identify the rod. I missed the first part of the discussion and only heard it
identified as a Cross Sylph, but the Taper sheet calls it a Bataviakill.
Zimney? Chris? Can one of you clear this up?
In any case here is the taper:  7 ft  13/64 ferrule  4/64 Tiptop

0 in. - .290
3 - .290
6 - .290
9 - .290
12 - .286
15 - .282
18 - .275
21 - .265
24 - .260
27 - .255
30 - .248
33 - .240
36 - .230
39 - .220
42 - .203
45 - .198
48 - .190
51 - .180
54 - .168
57 - .158
60 - .150
63 - .140
66 - .130
69 - .120
72 - .112
75 - .106
78 - .096
81 - .080
84 - .062