Living in the San Fernando Valley I have access to a good amount of canyons, how do they handle in canyons?
Differently. STi in part due to suspension design and in part of the asymmetrical AWD system they use is an understeer monster and typically have a bit of difficulty getting the rear rotation in. The CTR drives similar in the sense FWD is understeer prone but the CTR achieves much faster turn in, Subaru just haven't figured it out or tune all their cars this way with a slower front end. The CTR has much more front end bite on turn initiation and quicker to get the weight transferred in the rear. But, in part due to being FWD the rear never really gets much rotation and you have to decide from your tuning (tire pressures or modifications) if you want to try and get rotation by having lower tire pressures out back which make your sidewalls roll over a bit more generally yielding less ultimate grip but the rear slides giving some rotation. Or just going full grip route and allowing the car just to hang on which it does very well but any of the power on slides/rotation you enjoyed in the STi won't be there.