Pixelated
Moderator - CPST Instructor
It sounds like you might have been tethering to the anchor meant for forward facing, so over the top of the seat toward the back of the car? If so, that's not really the preferred method. It's called the Australian method. The preferred method is the Swedish method, and may be what's required in Canada to meet rebound control regulations. For it, you use the included loop of webbing with a metal D-ring on the end to create a tether point toward the front of the car, usually using the front seat's track. That way, the strap is behind the seat and out of your way.
Aussie tethering or Swedish tethering are now REQUIRED in Canada on G4 seats. You would be well advised to inquire of Subaru whether they permit tethering Swedish-style. Otherwise your only option is Aussie style. This is new on the G4 seats. More info here: http://www.car-seat.org/showthread.php?t=260873
Just came back from looking at car seats.
The Radian Dione you can't RF with the child being more than 30 inches.
Was told that if a. Holds legs are bent or touching the seat it is more dangerous and the child needs to FF.
The Foonf and the Peg perego fit shorter than the Britax.
I was told I would need longer straps from Britax.
I am so discouraged.
OP who told you all of that? It's essentially all untrue. The Radian rear-faces to up to 44" or until there is 1.5" of hard shell above the head.
The Foonf and Peg may measure similarly to the Britax, but in reality the way kids fit in them they typically last years longer rear-facing. You may need a longer tether strap for a Britax seat IF you are tethering Aussie-style and your anchor is far away. Britax is working on a tether extender for those situations.
Where are you located? Maybe there's a tech nearby who can help you.