Vince,

Obviously the best way to get a reliable legal opinion re knives is to hire your own experienced criminal lawyer in your own state. Assuming you do not want to pay for such an opinion, another fairly good way to get reliable advice would be to ask your local district attorney or public defender. Naturally you do not want to indicate that have in your possession/ownership a potentially illegal knife.

Incidentally I have been very pleased with my own full sized RSK.

Good luck,

John