But...I pulled out a few more Rick basses tonight(my '73 4001, '88 4003, '94 4003S and '92 4003SFL), again noticed the difference in their neck feel, and then measured them as well. (Persistent little guy, aren't I!
) I'm going to re-post my previous findings as well as those of others for comparison. So here they are from oldest to newest:
(All measurements are in cm)
Measuring all the way around from just in front of the first fret:
AY's 1964 4001S: 11.1
BA's 1972 4001: 11.1
JT's 1973 4001: 11.45
JT's 1977 4001: 11.3
JT's 1987 4003S: 11.3
JT's 1988 4003: 11.2
JT's 1992 4003SFL: 11.3
JT's 1994 4003S: 11.6
JT's 1998 4001V63: 11.7
JT's 2003 4001C64S: 11.7
JT's 2006 4003: 11.8
Here's what we have so far at the third fret:
AY's 1964 4001S: 11.4
BA's 1972 4001: 11.5
JT's 1973 4001: 11.7
JT's 1977 4001: 11.65
JT's 1987 4003S: 11.65
JT's 1988 4003: 11.6
JT's 1992 4003SFL: 11.7
JT's 1994 4003S: 12.0
JT's 1998 4001V63: 12
JT's 2003 4001C64S: 12.1
JT's 2006 4003: 12.2
And at the 12th fret:
AY's 1964 4001S: 12.8
BA's 1972 4001: 12.8
JT's 1973 4001: 13.2
JT's 1977 4001: 13.0
JT's 1987 4003S: 13.25
JT's 1988 4003: 13.2
JT's 1992 4003SFL: 13.0
JT's 1994 4003S: 13.4
JT's 1998 4001V63: 13.5
JT's 2003 4001C64S: 13.4
JT's 2006 4003: 13.7
The 80's 4003 necks seem to be very close in girth to the 70's 4001 necks. There is a jump up in size between my '92 and my '94. And again between '94 and 2006.
