Anytime you jack up your car, the suspension will need to settle - even if "settling it" just means rolling it back and forth a few feet in your garage. If you recently installed coilovers, I'd recommend a short drive (a few miles) to ensure the springs are properly seated on their perches and the shocks compress to a their "normal" ride height.I know just springs need to settle, but do coilovers need to as well?
You'll still need to let the suspension settle and have the springs "seat" after jacking the car up and making changes. I'd drive the car around some, get the suspension working a little. Make sure you're happy with the lowered height before you invest in a new alignment.what if you already have teins installed and just want to lower them?? Mine have been on a couple years. No need to wait then, correct? Best to get an alignment directly after, correct?