Tires Falken or BFGoodrich

I'm in a similar boat as you I did the 615k's last season. Personally I am overly pleased with these tires they have been everything I've wanted them to be. And I'll probably get another set of them this year.

The 615k+ is a great budget tire. I did my first season on them and got second place in my regions rookie class. Then, I kept them and still use them for less competitive/ higher run count events. I've done 3 schools on them too. I love these tires. They're fun to drive on, take heat well, and just last. They do amazingly well in the rain also.

They are Falken Ziex ZE950 A/S

Not the same tires, but I’m currently running the Falken Azenis FK460 all season in 255/35/18 and I’ve been super impressed with them considering it’s an all season. Steering is still very precise, the tires are quiet on the highway and they’re communicative as grip loads up, and it breaks away progressively.

I have ridge grapplers and I really like them, but if I were only doing what you were planning on I would go back to wildpeak AT3s. Those tires were actually amazing.

I’m running 265/70/17 (123 load) K03 on my 4Runner and I’ve been pleased with washboard performance (2mi of sort on my commute). They do like to chuck rocks more than the AT3W (not sure how the AT4W is). Rain performance has been great here in Maine. Haven’t had enough snow yet

I never had a puncture on multiple sets of KO2's.

Had Falken RT615k+ previously and they're great fresh, but you won't get much mileage (11k mi) out of them and they pick up punctures easy with how soft the compound is.

I bought the RT660s because I wanted to save money after running the RE71s.....regretted it. Just doing one season and switching back. The pressures are weird ( need to run way higher than RE71s) and they feel like ice skates on asphalt.

I know I'm way late to the party but I'd go with the Falkens, I had a set of KO2s on my TJ and they where an absolute bitch to get balanced and caused a ton of vibration between 60 and 65 mph