:scowl:
Phat is correct. The USA Bolt-On Models are NOT the same shape/curve profile as the USA Neck-Thru Models.
I'm taking detailed photos and plan on doing a diagram showing the differences. The USA Bolts are more like the Legends. Or I should say the Legends are now more like the USA Bolts.
The only Spector Bolt-On neck models with the original NS-Curved/Carved Body design is the Euro ReBop line. They are the same as the USA and Euro Neck-Thru Models.
The ONLY differences between the USA and the Euro Neck Thru Models are in three areas.
The shape/profile of the fingerboard as it connects with the neck and the body. The Euro is more squared whereas the USA is rounded.
The back of the neck where the neck meets the body. This transition area is more subtle, more gradual with the USA whereas the Euro models have more of a noticable ledge from the body to the neck, if that makes sense.
And at the headstock. The Euro's neck at the first fret is actually thick because there is a gradual "hump" that rises up from the neck and then back down to the headtock.
The USA models have a sharp "lip" that rises up just under the nut and then recedes down to the headstock. Almost like a wave that is breaking on the shore.
That's about it. The rest is so close you can't easily tell the difference.

