Thanks. I sent an email to Talley assuming it would take at least most of a day and they replied in 3 minutes! According to the Talley Technician that replied, Yes the anti-cant level can be used on their 20MOA rings.I’ve never actually tried that but the lightweight 20MOA rings as far as I’ve ever noticed are identical to the regular lightweight rings except for the base angles. I have both sitting in the shop but no time to look right at the moment. If no one else confirms I can check later.