For a pre-facelift 2011 5.0

I recently had an alignment after replacing the front shock mounts and upper arms. I'm pretty sure the alignment hasn't been done correctly. The car wanders off line much more than previously, and when correcting for the wandering, the initial turn of the steering wheel feels as though there is a slight resistance, like the front feels are fighting the steering correction. I'm heading back to the alignment shop to have it rectified but I'm curious about which alignment setting you think would give the symptoms I described: toe-in, caster, a combination of them? Something else? I don't have a copy of the settings that the shop did on the car but I'll definitely get one this time. I'm looking forward to reading your opinions.

Thanks