will a bx 1500 power a post hole digger? I see that Woods has a small unit available. Is the tractor tall enough to use it? Also, how does auger size affect digging effort? I would like to use a big auger, I think I saw a 9 inch diameter available for the smaller digger. Has anyone used a post hole digger to make a small trench by digging many holes in line and cleaning out the extra dirt leftover? I'm thinking that besides fenceposts I might try to use it to install pvc downspout drainage piping 12 to 18 inches deep maybe 100 feet or so on each side of the house.