You're welcome.
Your other option is MBAM Pro (same thing a one off fee, slightly higher cost than SAS Pro) and that also works with avast.
I had already purchased my copy of SAS Pro before I ever used MBAM free. If I were starting out I would probably go for MBAM Pro and SAS Free, whatever you choose, only one resident anti-spyware/malware, the other if you choose should be on-demand.