I had an alignment done this spring by a trusted alignment guy who knows what he is doing. The alignment ended up perfect, exactly what I wanted, all within OEM specs. The car drove noticeably better after the alignment and it continues to drive very well. Tires are wearing evenly.

How often should I follow up and check this alignment? Or should I just wait until/if I notice a problem?

 

If the eccentric adjustment nuts are cranked down nice and tight (not following some torque spec, but actually having a feel for how tight something needs to be), and the car is not subject to any hard hits like potholes...the alignment will essentially last forever. Or outlast the first component that wears out which affects alignment.

I track the car on slicks and haven't touched the alignment in years.

 

Sadly hard hits from potholes are a daily occurance here. I find myself scanning for them and trying to dodge them on certain roads.

 

You could make yourself a poor man's camber gauge using a flat hard material pressed against the wheel and a modern cell phone with a clinometer app. Or buy a camber gauge from longacre. After a fresh alignment measure with this tool to get a baseline then you could periodically check for changes from the baseline.

I've read of people using this method at tracks to make sure their alignment has not changed throughout the day. Could be wrong on this theory...