I have a 2016 Kubota L2501 HST and my front tires are getting low on tread. The factory tires are Titan TracLoader 27x8.50-15 NHS R4 Industrial tires. I called my local Kubota dealer and they are really proud of those tires and the price reflects that (like $300 each!)! I see where Carlisle makes a Trac Chief R4 tire that looks pretty much the same based on pictures on the internet and is close to half the cost. Does anyone out there have opinions on either of these two tire choices, good or bad?