You can do neither 1 or 2 because your system is set up wrong and not how it is expected. I have all Victron chargers with current monitoring built in but the charge current still goes through the battery monitoring shunt. You must connect the negative leads from your MPPTs to the system negative side of the shunt. See the FAQ I wrote about this.
There are other useful FAQs in the sticky post at the top of the DIY forum.
The manual also shows the correct way to wire the system.
