I recently posted about the possibility of installing 3 carseats across in the second row of our 2007 Honda Pilot...

Currently, we have two britax marathons both forward facing and latch installed...

We are looking to add an infant car seat - babytrend flex loc...

There are only two sets of latches in the second row and three tethers...

Recently, our friends who drive an Acura MDX (2007) showed us their set up with three seats, all latch installed...

They latch installed the middle seat using one latch attachment from each of the outboard positions, while maintaining the outboard seats also latch installed...

We got this to work in our second row, with the two marathons in the middle and drivers side outboard position, and the base for the infant car seat behind the passenger seat...

Is this safe - this "double latching"? Any car seat experts out there that can help?

Thanks in Advance!