Just went back to see what you said about what you were looking for on tires.
The 2 comments that stick out are "smooth" and "looking to add some easy offroad".
The other comment you have made even earlier stated you do a lot of mountain biking.
The final ingredient of this mix of data points is the S10 itself. You bought it, and you have thrown some money at it. (Flash, for example)
Offroad, mountain biking, and the S10 Adventure bike itself all combine to create an image in my mind that calls for what I think is so incredible about this bike. It's an amazing machine at carrying you and all your "stuff" looooong distances. And then when you finally get to where the pavement ends, she happily can carry you to those amazing views and back woods or mountain spots.
However, it is NOT the same experience when you get to the off-pavement part of the adventure if you are on "smooooth" street tires. You can do it, but it's just not nearly as much fun.
I know what you mean by not wanting the vibration associated with true offroad lugs like the TKC's and similar tires. But if you can live with some minor tickling, the K60's are an amazing tire on this bike. (They smooth way out after just a few miles)
With the minor concession you make for onroad smoothness, you get a BIG boost for the offroad prowess. This Beast is so different when it can hook up offroad. So much fun!
And the bonus you get with the K60's is the amazing lifespan they give you. Quite frankly, the claims seem unbelievable. But it's true.
I'm not really sure why I think you should try them so strongly. I could be misreading your posts. And if you really don't have a strong urge to use this S10 to see where it can really take you, then I wouldn't go with them either. But an S10 is an amazing weapon for heavy hauling to see the world!
If you do want to see for yourself, spoon some K60's on. Put 1000 miles on them. If you don't want them, I'll buy them from you full price.
Kind of a dare, ain't it? I'm only daring you to go adventure on your adventure bike.