There is nothing in the tractor tires but air and some Slime. And there are no weights on the tractor either. It's not a big deal that I can't scrape the clay with the scraper as the dozer takes care of that just fine. I can use the scraper to move the clay after it has been gouged out by the dozer. Actually, at the rate I do stuff, the box blade suffices just fine for cleaning up after a session on the dozer.
As for the blade on the scraper, it is fairly sharp, and has two cutting edges so it can be flipped over if needed. I will probabaly remove it when the shop is built and I move my bench grinder there so I can sharpen it on site. It's really old and I doubt I can find parts for it, so I'm just using it for more of a dirt carrier and grader right now.
James, I don't hunt anymore, but for a hunter, the Sabinal/Concan area has to be nice. We have seen lots of game while riding the county roads and while floating down the more secluded parts of the Frio. I had no idea that there was such a variety though.
Dave, my tractor is slightly more than a year old and already has 445 hours on it. When I first got it, I was doing about 10 hours a day. I would come home and my butt would be hurting from sitting so long and my neck would be sore from watching behind so much. I never had a loader to play with before. It's the best replacement for a wheelbarrow ever invented. A real back saver indeed.