[quote name='bluejay' timestamp='1421046009' post='2656444']
It's just worth remembering that current/contemporary Warwick necks are as thin as those of any other make. They were thicker only for a short period in the 1990s IIRC.
[/quote]
Generally, the Warwick "Baseball Bat" neck period was 1999/2000-2009. The handmade eighties and early nineties bass were very slim, mid to late nineties they were all over the place. Post 2009 they went back to being slim again, although not as slim as the vintage models (however that profile is available as a CS option).
I have actually never played a fretless Warwick somehow(!), however I'm sure they are great, providing you like the Warwick tone! Very different from an SG, have you tried both? Just choose the year wisely. If you like slim necks, look at pre-1999 and post-2009 models, if you like the thick necks then grab something built in the naughties.