I keep good tires on all my vehicles. 5 yrs they go bye bye. You should never play games when it comes to tires. I hydroplaned enough on so so tires. Got too old for that nonsense.
4/32 = ~3mm.
Based on this chart, I'd say you did it at just the right time.
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https://www.coopertires.co.nz/cooper-life/blog/2018/june/tyre-tips
Yes but in Florida you need Hurricane traction!Here in Florida I will not try to get max miles out of tires due to the rain.
Safety and dry rot cracking are my concerns.
Hard or soft doesn’t necessarily improve or worsen traction in the rain.In my experience, the rubber has become quite hard by the time I reach 5/32”, and the effective wet traction is gone, even if there’s a little tread left. I replace based usually based on wet stopping ability, and that varies by tire.
I was recently surprised by a set of Kelly edge tires which were at the wear bars but still stopped rather well in the rain. Being at the wear bars, we got the tires replaced. That was a good set of tires.