Steering wandering and follows ruts

Then your tires are walking some what. You need to go up some in pressure to around 36-38 if the light will tolerate it. Maybe then tires want walk as bad.

 

That's too low, what the tires doing is squirming, bump up the 36 PSI see if it does not feel better it should have more stability. The ride might be a little harsher but it should still feel OK

 

At 29 psi you are going to get irregular wear on those tires. For what it is worth more tread depth will make tires feel different . You will get use to it over time.

 

Well you seem to know everything , and if you and your alignment guy were so smart you wouldn't be here asking us for help. So continue listening to your 30-year friend and drive you're wondering Tacoma. Mine drives straight as an arrow, no wandering , no following ruts , runs awesome of course mine has way more caster than yours , but hey you're the expert. I only do alignments for a living.

 

That's good!

 

I've seen plenty "experts" in the automotive field it's still don't know what the hell they're talking about. The problem seems to be the air pressure which he figured out. The OP never said his guy was the best in the world he just said he had a lot of faith and trust in him, it doesn't take a rocket scientist to Align a vehicle with the new tools and equipment they have today. And if his alignment fell into factory specs and the vehicle still doing what he described that's why concluded it was something else, ex. Tire pressure. I'm not an automobile field by trade, but I'm 42 now and I've been lifting and lowering and working on vehicles and selling tires since I was 15. So when I read about a problem somebody has a look at the overall situation see what he has done and compare it to situations or knowledge that I have. Before you try to attack me if you look at my post on trying to give assistance I don't bash anyone but instead try to be helpful .