c -
If it came from the factory that way, it should be safe to shoot but a "bear" to tune. If it happened over time, it may not bode well for the integrity or remaining life span of the bow.
Caveat: you are measuring the tiller correctly, but sometimes the fade out can be a little hard to pick out. If the lower limb is visually more bowed than the upper, I would be concerned.
Viper out.