It's more than a month since I started using MOD V1.
Here is what I do to avoid ban.
In general, I turn on rewards multiplier x5, damage multiplier x5 and VIP 4.
1. Don't use gem mine.
2. Don't use legendary cards in your deck regularly.
3. Play only while events are being held.
4. Don't open bonus chest more than 3 times in events.
5. Don't use Goddesses spins.
6. If you get lots of gems while events, spend ASAP.
7. Don't LV up your WL quickly. 1 or 2 levels a week.
8. Don't LV up your legendary cards quickly.
9. Be sure the number of chest opened do not exceed around x2 ~ x3 of arena wins.
In short, keep low profile.