I'm helping my brother-in law repair eroded ground behind nine log cabins overlooking a creek, the lowest cabin is about is about 20' up from the creek but the forth one is about 80' we're building a path behind the cabins about 7' wide, he's using a mini-excavator which he drives right up the side of the revenge, he's also a heavy equipment operator all his life. I'm feeding him dirt going along this path as he grades it, I'm using an older Bobcat 631 which I've only owned for about 6 months and used on flat ground. What I'm wondering is how easy do these skid steers tip over backwards, we're now getting close to the third cabin the grade is steep enough you can't walk up it, when I bring a bucket of fill up and raise it just enough to dump. it feels like the machine is going to flip over backwards, and it's a long ways down, also would a track machine be better suited for a job like this. Any input would be greatly appreciated. Thanks Whitey