DSE Quadralink vs Speedtech torque arm

[Terryd]

Planning out my next project, '72 Trans Am. Wondering about any experiences and/or opinions on rear suspension options. I have the Quadralink in my last build and I am perfectly happy with it. Not familiar with the whole torque arm set up. Considering it for this build. To be honest my cars see most all of their time on the street. I keep threatening to try out autocross so I want it to be capable for that as well. Any input would be appreciated !
Thanks