With the addtion of fretless lined & unlined options, the different variants go up to 60, the f/less option is only available with pau ferro, this excludes the limited full rosewood neck series.

1) 4 strings qlt tp H maple f/board
2) 4 strings qlt tp H rswd f/board
3) 4 strings qlt tp HH maple f/board
4) 4 strings qlt tp HH rswd f/board
5) 4 strings qlt tp HSS maple f/board
6) 4 strings qlt tp HSS rswd f/board
7) 5 strings qlt tp H maple f/board
8) 5 strings qlt tp H rswd f/board
9) 5 strings qlt tp HH maple f/board
10) 5 strings qlt tp HH rswd f/board
11) 5 strings qlt tp HSS maple f/board
12) 5 strings qlt tp HSS rswd f/board
13) 4 strings qlt tp H whole rswd neck
14) 4 strings qlt tp HH whole rswd neck
15) 4 strings qlt tp HSS whole rswd neck
16) 5 strings qlt tp top H whole rswd neck
17) 5 strings qlt tp HH whole rswd neck
18) 5 strings qlt tp HSS whole rswd neck
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19) 4 strings flame top H maple f/board
20) 4 strings flame top H rswd f/board
21) 4 strings flame top HH maple f/board
22) 4 strings flame top HH rswd f/board
23) 4 strings flame top HSS maple f/board
24) 4 strings flame top HSS rswd f/board
25) 5 strings flame top H maple f/board
26) 5 strings flame top H rswd f/board
27) 5 strings flame top HH maple f/board
28) 5 strings flame top HH rswd f/board
29) 5 strings flame top HSS maple f/board
30) 5 strings flame top HSS rswd f/board
31) 4 strings flame top H whole rswd neck
32) 4 strings flame top HH whole rswd neck
33) 4 strings flame top HSS whole rswd neck
34) 5 strings flame top H whole rswd neck
35) 5 strings flame top HH whole rswd neck
36) 5 strings flame top HSS whole rswd neck

I have ordered a 5 Strings flame top / HSS / Rosewood Fretboard.

I've got: 24) 4 strings flame top HSS rswd f/board, created in May 2009.
The more I play it the more I like it. Very special.
If anyone ever gets the notion to trade their 5-string for my 4-string, PM me.

I've got #12 / 5 HSS Quilt, best bass I've ever owned, so I sold two others and ordered #28 / 5 HH Flame, to me the two of these are like having multiple basses.

37) 4 strings qlt tp H fretless pau ferro lined
38) 4 strings qlt tp H fretless pau ferro unlined
39) 4 strings qlt tp HH fretless pau ferro lined
40) 4 strings qlt tp HH fretless pau ferro unlined
41) 4 strings qlt tp HSS fretless pau ferro lined
42) 4 strings qlt tp HSS fretless pau ferro unlined
43) 5 strings qlt tp H fretless pau ferro lined
44) 5 strings qlt tp H fretless pau ferro unlined
45) 5 strings qlt tp HH fretless pau ferro lined
46) 5 strings qlt tp HH fretless pau ferro unlined
47) 5 strings qlt tp HSS fretless pau ferro lined
48) 5 strings qlt tp HSS fretless pau ferro unlined

49) 4 strings flame tp H fretless pau fero lined
50) 4 strings flame tp H fretless pau fero unlined
51) 4 strings flame tp HH fretless pau ferro lined
52) 4 strings flame tp HH fretless pau ferro unlined
53) 4 strings flame tp HSS fretless pau ferro lined
54) 4 strings flame tp HSS fretless pau ferro unlined
55) 5 strings flame tp H fretless pau ferro lined
56) 5 strings flame tp H fretless pau ferro unlined
57) 5 strings flame tp HH fretless pau ferro lined
58) 5 strings flame tp HH fretless pau ferro unlined
59) 5 strings flame tp HSS fretless pau ferro lined
60) 5 strings flame tp HSS fretless pau ferro unlined

I broke down and ordered config 18 yesterday in addition to my 25th 4HSS.
18) 5 strings qlt tp HSS whole rswd neck, #7/25 produced.

Uber cool choice projectapollo!! well done

I have a #32, flamed 4HH full rosewood neck, number 4 of 25. Contemplating a #23, flamed 4HSS maple as a contrasting twin. I'm like laneline; a 25th HH and HSS should make a killer combo. I prefer flames over quilts and 4's over 5's on the 25th. I have a Bongo5 if I need a low B.

i ordered #11 !!