It's a JD 2210. I had the HDAP tires on my JD x585 and found them to be a good biting tire but again I never used them with a loader just snowblowing.
The tire pressure is good, not too hard.
I have considered r4's but they're almost twice as much for my size(26x12.00-12) and I didn't know how much more traction they'd give. Don't want to spend the extra $$ if I'll end up having to buy the bar/ag tires later on (that's where the vast knowledge and expereince on this site comes into play!).
Anyone who can point me in the right direction for a good price on the r4's I'd appreciate it. I can get a set of bar tires for $116.