Was watching a vid on the Equinox and some well known users were saying don't ground balance use the pre-set O, iron bias on 4 to stop iron chattering, and keep the recovery speed on about 6. What are your thoughts on this? https://www.facebook.com/joan.allendetect/videos/1593447717442305/UzpfSTE1NzYzNTQ0ODE2NDA1MjoyMTEzMDU2OTYxMzAzNjA/?q=joan%20allen