I am wanting to get a set of Barnsdale limbs as well. The problem you will run into is that Barnsdale doesn't know the spec codes for Martin and Martin doesn't know the specs codes for Barndale. I spoke with a guy in South Africa that is trying to get a set of limbs for his cougar. The best bet is going to be working with Barnsdale one on one. I have an email into Barnsdale asking about limbs for my cougar. Iam sure I will have to send the bow to Barnsdale to get it done. I am looking at getting the Barnsdale set installed and keeping the Martin set as insurance.