[hayden55]

Deka rebrands a lot of their small powersport batterys to lawn and garden for redistribution. Probably slightly lower quality as well. But they have higher and lower quality agms depending on where they are distributed. If I remember correctly the gold series lawn and tractor battery from advance auto parts I had in my mustang was one. Fairly cheap and got the job done.
How do you like zero toe? Typically setting toe too close to zero will make the car try to yank the steering wheel out of your hands in every bump and make the car pretty bad to drive for the average joe.
Also, I tend to need at least -2 to -3 degrees of camber to keep from wearing off the outside shoulders of my tires. I would imagine the miata would need that as well as they are known for HEAVY body roll. -1 to -1.5 degrees in the rear is typically fine for outer tire wear.