i know i may be using old out dated books but i have not had the money to buy all the new ones that have come out due to life i.e having children and moving over the years. but now that im somewhat settled again and have had a lil time on my hands i pulled out all my outdated books and found a truck i designed using rigger2 and have a question about vehicle signature. is it the higher the neumber the better the vehicle signature or the other way around.

Depends on what you mean by better. The higher the sig, the harder it is to detect. I think it's actually the sensor's TN to spot you or something (don't have the rigger rules down myself).